KR20200000838U - Gas treatment test system and offshore plant having the same - Google Patents

Abstract

A gas treatment test system according to an embodiment of the present invention includes a gas treatment test apparatus for testing the treatment of liquefied gas, and a module body detachably attached to a marine float; And a power transmission device that transmits power between the module body and the marine float, wherein the power transfer device is fixed to the marine float and transmits power generated from the marine float to the module body. .

Description

Gas treatment test system and offshore plant having the same}

The present invention relates to a gas treatment test system and a marine float including the same.

As environmental regulations have recently been strengthened, the use of natural gas close to eco-friendly fuel among various fuels is increasing. Natural gas can be extracted in gaseous form from gas wells located in inland or ocean strata, and the extracted natural gas is liquefied through a liquefaction process for storage and transportation after pretreatment such as mercury removal, drying, and NGL removal. You can.

Natural gas can be changed to a liquid state by cooling to a boiling point (eg, -162 ° C under 1 atm) while exchanging heat with a refrigerant, and in the case of a liquid state, the volume is reduced to 1/600 compared to the gas state. Transport efficiency can be increased.

The liquefaction process as described above can be performed in an on-shore plant or an offshore FLNG, and liquefied natural gas can be stored in an LNG storage tank and then supplied to a consumer.

For example, natural gas may be supplied from an LNG storage tank to an on-shore city gas facility or a power generation facility, or may be delivered to a cargo tank of an LNG carrier and transported to a desired region by the LNG carrier.

At this time, the natural gas may be vaporized and consumed after being discharged from the LNG storage tank or the cargo tank, and the vaporization facility may be provided in an onshore plant or FLNG, or in a facility that consumes natural gas.

As described above, natural gas is consumed through a pre-treatment, liquefaction process, storage, transport, and vaporization process after being extracted from a gas well. In order to process gas production, processing, and supply in the ocean, floating liquefied natural gas production and storage Facilities (FLNG; Floating Liquified Natural Gas or LNG FPSO; LNG Floating Production Storage Offloading) are being built.

When drying of the floating liquefied natural gas production storage facility is completed, the floating liquefied natural gas production storage facility is moved to a gas field where natural gas is produced to produce and liquefy natural gas in the gas field, thereby suspending the liquefied natural gas. It is tested whether the various devices provided in the production storage facility work well.

As such, it is time consuming and expensive to perform the test of the floating liquefied natural gas production storage facility directly in the gas field.

In addition, when the test results show that a problem occurs with the floating liquefied natural gas production storage facility, repairing the floating liquefied natural gas production storage facility in the offshore gas field is more than repairing the floating liquefied natural gas production storage facility in a dry place. There are many difficulties and costs.

Therefore, there is a need for a device capable of directly testing the performance in a dry place after drying of a floating liquefied natural gas production and storage facility.

The present invention was created to improve the conventional technology, and an object of the present invention is to provide an economical gas treatment test system and a marine float including the same, which are cost-effective by modularizing the gas treatment test apparatus.

The gas treatment test system according to the present invention includes a gas treatment test device for testing the treatment of liquefied gas, and a module body detachably attached to a marine float; And a power transmission device that transmits power between the module body and the marine float, wherein the power transfer device is fixed to the marine float and transmits power generated from the marine float to the module body. .

Specifically, when the module body is attached to the marine float, the power transmission device transmits power generated by the marine float to the module body, and when the module body is detached from the marine float, from the outside Electric power can be transmitted to the marine float.

Specifically, the power transmission device, the module body or includes a power connection for connecting or releasing the outside, the power connection may be formed in a plug-outlet coupling manner.

Specifically, the power connection portion, a coupling portion formed in a plug-outlet coupling method; And it is formed to surround the coupling portion may include an explosion-proof envelope having an explosion-proof function.

Specifically, the explosion-proof sheath is formed in a screw-coupled manner, so that the power connection portion can be double-coupled with the coupling portion.

Specifically, the power connection unit, a first power connection unit; And a second power connection part which is detachably attached to the first power connection part and extends from the module body or the outside, wherein the first power connection part includes a first coupling part that transmits electric power and has an outlet form. It is formed to surround the first coupling portion and includes a first explosion-proof outer shell on which an internal thread is formed, and the second electric power connection portion transmits electric power and surrounds the second coupling portion having a plug shape and the second coupling portion. It is formed and may include a second explosion-proof outer shell on which the male thread is formed on the outer circumferential surface.

Specifically, the power connection portion, the first coupling portion and the second coupling portion is first coupled by plug-outlet coupling, the first explosion-proof envelope and the second explosion-proof envelope is a female thread-male thread coupling secondary It can be combined to implement a double bond.

Specifically, it may be a marine float, characterized in that it comprises the gas treatment test system.

The gas treatment test system according to the present invention and the marine floating matter including the same can be detached by modularizing the gas treatment test apparatus, thereby improving economic efficiency and maximizing safety.

In addition, the gas treatment test system according to the present invention and the marine float including the same, the construction cost is reduced by allowing the nitrogen purging device to be simultaneously used as the driving power of the bilge processing device, and the nitrogen storage tank of the nitrogen purging device is bottled. By forming the furnace, there is an effect of easy maintenance and replenishment of nitrogen, and by constructing a nitrogen purging device in the module, there is no effect of limiting the direction of installation of the module and securing safety.

In addition, the gas treatment test system according to the present invention and the marine float including the same, after fixing the junction box for supply of electric power when attaching and detaching the modular gas treatment test device, connecting only the power line to the junction box And by forming the connecting portion in the form of a plug and outlet so as to implement desorption, there is an effect of reducing the material and airborne between drying the marine float and shortening the construction period efficiently.

1 is a conceptual diagram of an offshore floating structure including a gas treatment test system according to an embodiment of the present invention.
2 is a conceptual diagram of a gas processing test system according to an embodiment of the present invention.
3 is a plan view of a gas treatment test system according to an embodiment of the present invention.
In FIG. 4, (a) is a side view of a gas processing test system according to an embodiment of the present invention, and (b) is a plan view of a gas processing test system according to an embodiment of the present invention.
5 is a conceptual diagram of a gas processing test system according to an embodiment of the present invention.
In Figure 6 (a), the gas treatment test system according to an embodiment of the present invention is a conceptual diagram of the construction of a power connection device when attached to a marine float, (b), gas treatment test according to an embodiment of the present invention It is a conceptual diagram of the construction of an electric power connection device when the system is detached from a marine float.
7 is a conceptual diagram of a power connection unit in a gas processing test system according to an embodiment of the present invention.

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments associated with the accompanying drawings. It should be noted that in this specification, when adding reference numerals to components of each drawing, the same components have the same number as possible, even if they are displayed on different drawings. In addition, in the description of the present invention, when it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Hereinafter, the gas is LPG, LNG, ethane, etc., which may mean a material having a boiling point lower than room temperature.

Hereinafter, the gas treatment system of the present invention will be described, and the present invention includes a gas treatment system and a marine float having the same. At this time, it is noted that offshore floats are expressions that encompass ships such as general merchant ships in addition to offshore plants such as FLNG and FSRU.

1 is a conceptual diagram of an offshore floating structure including a gas treatment test system according to an embodiment of the present invention, FIG. 2 is a conceptual diagram of a gas treatment test system according to an embodiment of the present invention, and FIG. 3 is one of the invention Arrangement plan view of a gas processing test system according to an embodiment, FIG. 4 is a layout view of a gas processing test system according to an embodiment of the present invention, and FIG. 5 is a conceptual diagram of a gas processing test system according to an embodiment of the present invention, FIG. 6 Is a conceptual diagram of a power connection of a gas processing test system according to an embodiment of the present invention, and FIG. 7 is a conceptual diagram of a power connection unit in a gas processing test system according to an embodiment of the present invention.

 As shown in Figures 1 to 7, the marine float 1 having a gas treatment test system 2 according to an embodiment of the present invention, a liquefied gas storage tank 10, gas treatment test apparatus 20 And a power transmission device 30.

The marine float 1 having the gas treatment test system 2 is provided with a liquefied gas storage tank 10 inside the hull 1a, and a plurality of liquefaction process devices on the upper deck D of the hull 1a (L) and a gas processing test device 20 and a power transmission device 30.

In the following, each embodiment of the gas treatment test system 2 will be described in detail based on FIGS. 1 to 7.

The liquefied gas storage tank 10 stores liquid liquefied gas. The liquefied gas storage tank 10 may store liquefied gas at a pressure of about 1 bar, and may be provided in plural, and may be arranged side by side inside the hull 1a.

As an example, at least five liquefied gas storage tanks 10 in the hull 1a may be arranged in a certain direction (front-rear direction) as shown in FIG. 1, but the number or arrangement of the liquefied gas storage tanks 10 is limited as above. It is not done.

The gas treatment test apparatus 20 forms an outer periphery with the module body 20a, and is provided inside the module body 20a to test the treatment of liquefied gas. At this time, the gas processing test apparatus 20 is driven through a supply device independent from the outside, and the module body 20a is formed to be detachably attached to the marine float 1.

The gas processing test apparatus 20 includes a vaporizer 21 for vaporizing liquefied gas, a vaporizing gas compressor 22 for compressing vaporized gas, and a heater 23 for heating vaporized gas compressed by vaporized gas compressor 22, A heat source-cold source supply unit 24 for supplying a heat source and a cold source to the vaporizer 21, the heater 23, and the evaporative gas compressor 22, and a purging device for purging the pipeline P through a purging fluid ( 25) and a bilge device 26 for processing a bilge integrated under the module body 20a.

The gas processing test apparatus 20 may have a pipeline P that is organically coupled to the vaporizer 21, the evaporative gas compressor 22, the heater 23, and the heat source-cold source supply 24, and A valve is provided on the (P) to control the flow rate of the flowing fluid.

At this time, when the gas treatment test apparatus 20 is attached to the marine float 1, the pipeline connection 201, which is a part where the pipeline P is connected to the lines provided in the marine float 1, is expandable It can be configured in the form of a flexible hose and can be configured for cryogenic temperatures.

The gas processing test apparatus 20 may verify, for example, a Cargo Containment System through a vaporizer 21, an evaporative gas compressor 22, and a heater 23, which are devices provided therein.

That is, the gas treatment test apparatus 20, the vaporizer 21 can be supplied to the liquefied gas storage tank 10 after being liquefied by receiving the liquefied gas from the shore demand (shore), and in the liquefied gas storage tank 10 Cargo Containment System through driving to supply the generated boil-off gas to the liquefied gas storage tank 10 by heating it with the heater 23 after compressing the boil-off gas compressor 22. (Cargo Containment System) can be verified. Of course, the above driving and verification is an example, and of course, testing may be performed through various driving.

At this time, the gas treatment test apparatus 20 may be provided by being biased to the starboard on the liquefied gas storage tank 10 as shown in FIG. 4 ((a) of FIG. 4 is a side view of the marine float 1) And (b) is a plan view of the marine float (1)) Of course, it is not limited to this arrangement, and can be freely disposed at various positions due to its modularized and detachable nature.

The module body 20a accommodates both the above-described vaporizer 21, evaporative gas compressor 22, heater 23, heat source-cold source supply 24, purging device 25, and bilge device 26. It may have a completely closed structure (closed type), or at least a part of the open type (open type). At this time, the module body 20a can reduce the structural reinforcement by reducing the weight.

The vaporizer 21, the heater 23, and the evaporative gas compressor 22 may be supplied with a heat source and a cold source through circulation of a circulating fluid provided in the module body 20a without supply of a heat source or a cold source from the outside. That is, the vaporizer 21, the heater 23 and the evaporative gas compressor 22 may be supplied with a heat source and a cold source through a heat source-cooling source supply unit 24 provided independently therein.

Through this, the present invention can make the gas treatment test apparatus 20 less susceptible to external interference and influence, thereby effectively modulating the gas treatment test apparatus 20. That is, it is possible to reduce the hassle of changing all of the connection parts whenever the type of the floating material 1 is changed, and has an effect of reducing installation time and cost.

The heat source-cold source supply unit 24 may supply a heat source to the vaporizer 21 and the heater 23 through a circulating fluid and a cold source to the evaporative gas compressor 22. Here, the circulating fluid may be fresh water, and the fresh water supplied to the vaporizer 21 and the heater 23 may be supplied in the form of steam and may be shared with each other.

Specifically, the heat source-cold source supply unit 24 circulates the circulating fluid through the evaporation gas compressor 22, the vaporizer 21, and the heater 23, while the evaporation gas compressor 22 cools the cold source to the vaporizer 21 and the heater ( 23) is supplied with a heat source, the circulating fluid is heated by the evaporative gas compressor 22, supplied with heat, and supplied to the vaporizer 21 or the heater 23, and the circulating fluid is the vaporizer 21 or the heater It is cooled by (23) and receives cold heat to supply it to the evaporative gas compressor 22 again to circulate with each other to supply cold heat and heat.

Here, the heat source-cold source supply unit 24, while temporarily storing the circulating fluid in the circulating fluid temporary storage tank 243, the evaporative gas compressor 22 and the vaporizer 21 and the heater 23 through the circulating fluid pump 242. If the circulation and the circulating fluid is not sufficiently heated in the evaporative gas compressor 22, the circulating fluid may be heated through the circulating fluid heater 241 to additionally supply heat.

The purging device 25 may be formed such that the purging fluid storage tank 251 for storing the purging fluid has a plurality of bottle shapes (Bottle Rack), and the gas treatment through the purging fluid supply line 252 It can be connected to a pipeline P that is organically coupled to the test devices 20 to supply a purging fluid. Here, the purging fluid may be an inert fluid, for example, nitrogen (N2).

At this time, the purging device 25, the purging fluid storage tank 251 is formed to have a plurality of bottles (Bottle) form is easy to maintain and has the effect of smoothly replenishing the purging fluid.

The purging fluid storage tank 251 may be in the form of a pressure container in which the purging fluid is stored to have a constant pressure, and after purging the fluid at a constant pressure, purging the purging fluid with internal pressure without a separate supply device such as a supply pump. Residual liquid and / or gas (Hydrocarbon gas / liquid) in the pipeline P may be removed through the fluid supply line 252.

The bilge device 26 may remove the bilge accumulated under the module body 20a through the bilge pump 262.

At this time, the bilge integrated in the lower portion of the module body 20a is integrated in the bilge well (BW) provided in plural in the lower portion of the module body 20a, and is supplied to and removed from the bilge storage tank 261 by the bilge pump 262. Can be.

The bilge pump 262 is supplied to and removed from the bilge storage tank 261 that is integrated in the bilge well (BW), and may be formed by a pneumatic pump.

In this case, the bilge pump 262 may use the purging fluid of the purging device 25 without supplying electricity or air as a power source.

Of course, in this case, the purging fluid supply line 252 is connected to the bilge pump 262 and the pipeline P so that the purging operation of the purging device 25 and the bilge operation of the bilge device 26 can be performed simultaneously or simultaneously. A valve (not shown) may be provided in the branching portion to be adjusted.

That is, since the purging fluid is stored at a constant pressure in the purging fluid storage tank 251, it has a pressure capable of driving the bilge pump 262.

As described above, by driving the bilge pump 262 through a purging fluid, the number of the gas treatment test apparatus 20 is reduced, the weight is reduced, and it can be simply manufactured, so the gas treatment test apparatus 20 of the present invention is substantially There is an effect that can be modularized.

The power transmission device 30 is fixed to the marine floating body 1 to transmit electric power between the module body 20a and the marine floating body 1, and specifically, the module body 20a transmits electric power generated from the marine floating body 1 It is delivered to the gas treatment test apparatus 20 provided in the.

Power transmission device 30, when the module body (20a) is attached to the marine float (1a) transmits the power generated by the marine float (1) to the module body (20a), the module body (20a) is a marine float When detached from (1), electric power can be transmitted from the outside (eg shore) to the marine float (1).

The power transmission device 30 includes a module body 20a or a power connection part 31 that connects or disconnects the outside, and the power connection part 31 may be formed in a plug-outlet coupling method.

The power connection portion 31 may include an explosion-proof outer cover 3111, 3121 formed to surround the coupling portion 311, 312 and the coupling portion 311, 312 formed in a plug-outlet coupling method.

The power connection part 31 includes a first power connection part EL2a and a second power connection part EL2b detachably attached to the first power connection part EL2a and extending from the module body 20a or the outside. At this time, a first coupling portion 311 and a first explosion-proof envelope 3111 are formed on the first power connection portion EL2a, and a second coupling portion 312 and a second explosion-proof envelope 3121 are formed on the second power connection portion EL2b. ) May be formed.

The coupling parts 311 and 312 are formed in the first power connection part EL2a and formed in the first coupling part 311 and the second power connection part EL2b, and the second coupling part 312 having a plug form. It may include.

Explosion-proof sheath (3111, 3121) is formed in a screw-coupled manner so that the power connection portion 31 can be double-coupled with the coupling portion (311,312).

Specifically, the explosion-proof envelopes 3111 and 3121 are formed to surround the first coupling portion 311 of the first power connection portion EL2a, and the first explosion-proof envelope 3111 is formed with an internal thread 3112 on the inner circumferential surface. 2 is formed to surround the second coupling portion 312 of the power connection portion EL2b, and may include a second explosion-proof envelope 3121 on which the male thread 3122 is formed on the outer circumferential surface.

Through the above-described configuration, the power connection unit 31, the first coupling portion 311 and the second coupling portion 312 is first coupled by plug-outlet coupling, the first explosion-proof sheath (3111) and the second explosion-proof The outer shell 3121 is combined with a female thread and male thread to form a second bond to form a double bond, and prevents contamination from the external environment due to the explosion-proof function of the first explosion-proof sheath 3111 and the second explosion-proof sheath 3121. You can. In addition, the explosion-proof sheath (3111, 3121), rubber packing is formed, it is possible to implement a triple bond.

In addition, the power connection unit 31 may be formed of a module having a plurality of outlet structures such as the first coupling unit 311.

At this time, when the module body 20a is mounted on the marine float 1, power is generated in the power room of the marine float 1 (for example, power generation from DFDE) and power through the marine float power connection line EL1. Power to the second coupling part 312 which is supplied to the transmission device 30 and is plug-concentrated with the first coupling part 311 through the first power connection part EL2a that is extended from the power transmission device 30. This is transmitted to the module body 20a.

In addition, when the module body 20a is detached from the marine float 1, power is supplied through the external power line EL2 connected to the outside, and the second coupling part through the second power connection part EL2b. Electric power is transmitted to the first coupling part 311 coupled with the plug 312 and the outlet, and supplied to the marine float 1 through the marine float power connection line EL1 through the power transmission device 30 (for example, Marine Switchboard).

Taken together, the gas treatment test system 2 according to the present invention and the marine float 1 including the same can be detached by modularizing the gas treatment test apparatus 20, thereby improving economic efficiency and maximizing safety. There is.

In addition, the gas treatment test system 2 according to the present invention and the marine float 1 including the same, the construction cost is reduced by enabling the purging device 25 to be simultaneously used as the driving power of the bilge device 26, By forming the purging fluid storage tank 251 of the purging device 25 in the form of a bottle, there is an effect of facilitating maintenance and replenishment of nitrogen, and by constructing the purging device 25 in the module, the direction of installation of the module There is no restriction and safety is secured.

In addition, the gas processing test system 2 according to the present invention and the marine float 1 including the same, the marine power floating device 30 for the supply of electric power when detaching the modular gas processing test device 20 After fixing to (1), the power connection unit 31 is formed in the form of a plug and an outlet so that only the power line to the power transmission device 30 can be connected and detached. It is effective in shortening the construction period.

The present invention has been described in detail through specific examples, but this is for specifically describing the invention, and the invention is not limited to this, and is within the technical spirit of the invention by a person having ordinary knowledge in the field. It will be apparent that the modification or improvement is possible.

All simple modifications or changes of the subject innovation belong to the scope of the subject innovation, and the specific protection scope of the subject innovation will be clarified by the attached utility model registration claims.

1: marine float 1a: hull
2: Gas treatment test system 10: Liquefied gas storage tank
20: gas treatment test apparatus 20a: module body
201: Pipeline connection 21: Carburetor
22: evaporative gas compressor 23: heater
24: heat source-cold source supply 241: circulating fluid heater
242: circulating fluid pump 243: circulating fluid temporary storage tank
25: purging device 251: purging fluid storage tank
252: purging fluid supply line 26: bilge device
261: Bilge storage tank 262: Bilge pump
30: power transmission device 31: power connection
311: first coupling portion 312: second coupling portion
3111: 1st explosion-proof jacket 3112: female thread
3121: 2nd explosion-proof jacket 3122: Male thread
EL1: Offshore power connection line EL2: External power connection line
EL2a: First power connection EL2b: Second power connection
BW: Bilge Well P: Pipeline
L: Liquefaction processing unit D: Upper deck

Claims (8)

It includes a gas treatment test device for testing the treatment of liquefied gas, the module body detachably attached to the marine float; And
It includes a power transmission device for transmitting power between the module body and the floating marine matter,
The power transmission device,
Gas treatment test system, characterized in that fixed to the marine float to transmit the power generated by the marine float to the module body. The method of claim 1, wherein the power transmission device,
When the module body is attached to the marine float, the power generated by the marine float is transmitted to the module body,
Gas treatment test system, characterized in that when the module body is detached from the marine float, power is transmitted from the outside to the marine float. According to claim 2, The power transmission device,
It includes a power connection for connecting or releasing the module body or the outside,
The power connection unit,
Gas treatment test system characterized in that it is formed in a plug-outlet coupling method. According to claim 3, The power connection unit,
A coupling portion formed in a plug-outlet coupling method; And
Gas treatment test system, characterized in that it comprises an explosion-proof outer shell having an explosion-proof function formed to surround the coupling portion. The method of claim 4, wherein the explosion-proof envelope,
It is formed in a screw-coupled manner, the gas connection test system, characterized in that to ensure that the power connection is double-coupled with the coupling. The method of claim 5, wherein the power connection unit,
A first power connection; And
It is detachably attached to the first power connection, and includes a second power connection extending from the module body or the outside,
The first power connection unit,
It includes a first coupling portion having a form of an outlet for transmitting electric power, and a first explosion-proof envelope formed to surround the first coupling portion and having a female thread formed on its inner circumferential surface,
The second power connection unit,
Gas transmission test system characterized in that it comprises a second explosion-proof outer shell which is formed to surround the second coupling portion and a second coupling portion having a plug form and transmits electric power, and a male thread formed on an outer circumferential surface. The method of claim 6, wherein the power connection unit,
The first coupling portion and the second coupling portion are first-coupled by plug-outlet coupling, and the first explosion-proof envelope and the second explosion-proof envelope are combined with a female thread and a male thread to form a double bond, thereby realizing a double bond. Gas treatment test system characterized by. A marine float comprising the gas treatment test system of claim 1.

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