KR20220042981A - gas treatment system and ship having the same - Google Patents

Abstract

The present invention relates to a gas treatment system and a ship having the same. According to the present invention, the gas treatment system comprises: a housing placed on a bow deck of the ship on which a liquefied gas storage tank is mounted; a liquefied gas pump placed in the housing and pumping liquefied gas transferred from the liquefied gas storage tank; a gasifier placed on one side of the liquefied gas pump inside the housing and heating the liquefied gas by a heat medium; a plurality of heaters placed on one side of the gasifier inside the housing and additionally heating the gasified liquefied gas by a heat medium; and a liquefied gas supply line consecutively transferring the liquefied gas in the liquefied gas storage tank to the liquefied gas pump, the gasifier, and the plurality of heaters. The plurality of heaters are placed in the housing. The liquefied gas supply line is respectively extended from the plurality of heaters, passes through a valve unit, and then is integrated at a certain point, and additionally includes a platform placed to be parallel to one side of the part where the valve unit is placed in the liquefied gas supply line. The present invention aims to provide a gas treatment system and a ship having the same, which are capable of innovatively reducing maintenance costs.

Description

Gas treatment system and ship including same {gas treatment system and ship having the same}

The present invention relates to a gas treatment system and a ship including the same.

In general, liquefied natural gas (LNG) is a clean fuel and is known to have more abundant reserves than petroleum, and its usage is rapidly increasing as mining and transport technologies are developed.

In such LNG, methane, the main component, is generally stored in a liquid state by lowering the temperature to -162 ° C or less under 1 atm. The volume of liquefied methane is about 1/600 of the volume of gaseous methane, which is a standard state, and the specific gravity is 0.42, which is about one-half of the share of crude oil.

After LNG is liquefied and transported by an LNG carrier, it is vaporized and used at a place of use such as on land. However, recently, floating facilities (FSRU, etc.) that are equipped with a regasification device on a ship such as an LNG carrier rather than on land, etc., vaporize LNG at sea and then supply it to the land, are in the spotlight.

The facility in which the regasification device is installed in this way pressurizes the LNG stored in the liquefied gas storage tank with a pump and sends it to the vaporizer, vaporizes the LNG into NG in the vaporizer and sends it to the demand on land.

In the vaporizer, heat exchange is performed to increase the temperature of LNG using the heat. In general, a method using seawater directly or indirectly is used to vaporize a large amount of LNG.

However, due to the structural limitations of the floating facility, the arrangement of the vaporizer and the heat supply configuration is inevitably limited. Various studies are in progress to improve the system efficiency through arrangement improvement.

The present invention was created to improve the prior art, and an object of the present invention is to optimally arrange a configuration for regasification of liquefied gas, thereby improving space utilization and effectively reducing construction and operating costs. and to provide a ship including the same.

A gas treatment system according to an aspect of the present invention includes: a housing provided on the bow deck of a ship on which a liquefied gas storage tank is mounted; a liquefied gas pump provided in the housing and pumping the liquefied gas delivered from the liquefied gas storage tank; a vaporizer provided on one side of the liquefied gas pump in the housing and heating the liquefied gas as a heat medium; a heater provided on one side of the vaporizer in the housing and additionally heating the vaporized liquefied gas as a heat medium; and a liquefied gas supply line for sequentially transferring the liquefied gas of the liquefied gas storage tank to the liquefied gas pump, the vaporizer and the heater, wherein a plurality of the heaters are arranged in the housing, and the liquefied gas is supplied The line, each extending from the plurality of heaters, is provided to be integrated at a certain point after passing through the valve unit, and further includes a platform arranged parallel to one side of the portion where the valve unit is provided in the liquefied gas supply line. .

Specifically, the platform may be disposed between the valve units provided in the liquefied gas supply line extending from each of the heaters.

Specifically, a plurality of the heaters are arranged in a left-right direction within the housing, and the platform is parallel to the front-rear direction between parts parallel to the front-rear direction in the liquefied gas supply line extending from each of the heaters. can be arranged for

Specifically, a plurality of the vaporizers form a set with the heater and are arranged in a left-right direction within the housing, and the platform is provided in parallel along the front-rear direction between the plurality of heaters and between the plurality of vaporizers. can

Specifically, the vaporizer, the heater, and the valve unit may be symmetrically disposed in the left and right directions with respect to the platform.

A ship according to an aspect of the present invention has the gas treatment system.

The gas treatment system according to the present invention and a ship including the same, by efficiently arranging components for regasifying liquefied gas on the hull, not only the system construction cost but also the maintenance cost is innovatively reduced, and the space in the ship is utilized It has the effect of maximizing the sex.

1 is a partial side view of a ship according to a first embodiment of the present invention;
2 is a partial plan view of a ship according to a first embodiment of the present invention;
3 is a partial side view of a ship according to a first embodiment of the present invention;
4 is a plan view of a gas processing system according to a first embodiment of the present invention.
5 is a conceptual diagram of a gas processing system according to a first embodiment of the present invention.
6 is a partial front view of a gas processing system according to a first embodiment of the present invention;
7 is a partial side view of a ship according to a first embodiment of the present invention;
8 is a partial perspective view of a gas processing system according to a first embodiment of the present invention;
9 and 10 are conceptual views of a drain unit of the gas processing system according to the first embodiment of the present invention.
11 is a conceptual diagram of a protective cover of the gas processing system according to the first embodiment of the present invention.
12 is a partial side view of a ship according to a second embodiment of the present invention;
13 is a partial plan view of a ship according to a second embodiment of the present invention;
14 is a plan view of a gas processing system according to a third 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 taken in conjunction with the accompanying drawings. In the present specification, in adding reference numbers to the components of each drawing, it should be noted that only the same components are given the same number as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

For reference, the liquefied gas in the present specification may be LNG, but is not limited thereto, and all materials (LPG, ethane, hydrogen, ammonia, etc.) that are forcibly liquefied for storage due to a lower boiling point than room temperature and have a calorific value may be included. .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a partial side view of a vessel 10 according to a first embodiment of the present invention, Fig. 2 is a partial plan view of a vessel 10 according to a first embodiment of the present invention, and Fig. 3 is a first embodiment of the present invention A partial side view of a vessel 10 according to an embodiment.

4 is a plan view of a gas processing system according to a first embodiment of the present invention, FIG. 5 is a conceptual diagram of a gas processing system according to a first embodiment of the present invention, and FIG. 6 is a first embodiment of the present invention It is a partial front view of a gas treatment system according to the

7 is a partial side view of a ship 10 according to a first embodiment of the present invention, FIG. 8 is a partial perspective view of a gas treatment system according to a first embodiment of the present invention, and FIGS. 9 and 10 are views of the present invention is a conceptual diagram of the drain unit 100 of the gas processing system according to the first embodiment. 11 is a conceptual diagram of the protective cover 110 of the gas processing system according to the first embodiment of the present invention.

For reference, in the case of FIGS. 3 to 5, the flow of the liquefied gas is mainly displayed, and FIG. 7 is mainly shown the flow of the refrigerant.

1 to 11 , the ship 10 according to the first embodiment of the present invention includes a gas processing system 1 and a liquefied gas storage tank 20 .

The ship 10 of this embodiment stores liquefied gas as cargo, regasifies the liquefied gas and supplies it to an external customer (land/offshore plant, etc.), and may be an FSRU or the like.

The vessel 10 may regasify and deliver the liquefied gas to the outside through the bow 11 , and for this purpose, a gas treatment system 1 may be provided at the bow 11 . However, the gas processing system 1 will be described in detail below.

The ship 10 may be divided into a bow 11 in which the gas treatment system 1 is provided, a central portion in which the liquefied gas storage tank 20 is mounted, a propulsion engine, a cabin, and a stern in which an engine casing is provided, and a deck make up this top

However, the deck may be provided at different heights from the bow 11 and the central portion, and the deck of the bow 11 may be referred to as the upper deck 12, and the deck at the center may be referred to as the trunk deck 13, and the trunk deck (13) may be located higher than the upper deck (12). This structure appears because of the shape of the liquefied gas storage tank 20 for storing liquefied natural gas, but it is also possible that the trunk deck 13 and the upper deck 12 are provided at the same height. Hereinafter, for convenience, the description is limited to a case in which the trunk deck 13 and the upper deck 12 located at different heights are provided.

Due to the height difference between the trunk deck 13 and the upper deck 12, a step may be formed on the upper surface of the bow 11, and the housing 30 of the gas treatment system 1 to be described later may be installed on the step. In this case, the step may be located in front of the liquefied gas storage tank 20 disposed at the forefront.

In this embodiment, the gas treatment system 1 includes a housing 30, a suction drum 40, a liquefied gas pump 50, a vaporizer 60, a heater 70, a heat supply unit 80, a drain unit ( 100) and the like.

The housing 30 is provided on the upper deck 12, which is the deck of the bow 11 of the ship 10, and accommodates the liquefied gas pump 50, the carburetor 60, the heater 70, and the like therein. The housing 30 accommodating the configuration of the liquefied gas pump 50 and the like may form a single regasification device.

The housing 30 may be divided into a first portion 31 and a second portion 32 , the first portion 31 is a rear portion supported by the upper deck 12 , and the second portion 32 is It is a front portion extending forwardly from the first portion 31 . At this time, the second part 32 may form a support deck 33 spaced upwardly from the upper deck 12, whereby the housing 30 may form a L-shape when viewed from the side. Of course, the front end of the second part 32 may be supported on the upper deck 12 by a separate support (not shown).

The liquefied gas pump 50 is disposed in the first part 31 of the housing 30, and the vaporizer 60 and the heater 70 may be spread out in the second part 32, which will be described later. Explain.

The housing 30 has a shape in which a wall is installed in front and rear, left and right, and an upper side is opened. Therefore, liquefied gas can be rapidly released into the atmosphere while naturally evaporating in case of leakage. On some of the walls of the housing 30, a heat-heat expansion tank 81 may be formed, which will be described later.

The front of the housing 30 may have a shape that is drawn into the rear. This is to allow the inflow and outflow of various devices to and from the bosun store inside the player 11 . That is, a hatch (not shown) for opening and closing the inside of the bow 11 may be provided on the upper deck 12 of the bow 11, and the housing 30 is disposed directly above the hatch to cover the hatch. .

At this time, as the front surface of the housing 30 has a shape that is retracted to the rear, the housing 30 may have a shape that is not projected onto the hatch. Therefore, the hatch can be provided to be exposed without being obscured upward even when the housing 30 is installed on the upper deck 12, and a separate crane or the like is inserted through the front portion of the housing 30 and the hatch through the bow 11 Easy access to the inside.

The suction drum 40 temporarily stores the liquefied gas transferred from the liquefied gas storage tank 20 . The suction drum 40 may deliver the temporarily stored liquefied gas to the liquefied gas pump 50, and may maintain an internal pressure equal to or higher than atmospheric pressure in order to prevent unnecessary evaporation of the liquefied gas.

The suction drum 40 may be provided outside the housing 30 instead of inside. Specifically, the suction drum 40 may be provided on the trunk deck 13 of the deck of the ship 10 from the outside of the housing 30 . For example, the suction drum 40 may be disposed directly above the frontmost liquefied gas storage tank 20 .

However, the left and right widths of the suction drum 40 may be limited so that the navigation view of the vessel 10 is not obstructed by the suction drum 40 . Specifically, referring to FIGS. 1 and 2 , a visibility line (VL) may be drawn toward the upper side of the front end of the housing 30 in the wheel house as shown in FIG. 1 .

If you draw the line of sight (VL), you can check the size of the blind spot that is obscured by a certain distance forward from the bow 11 due to structures on the deck. However, when the blind spot is large, the risk of collision increases during operation of the vessel 10 . Therefore, the blind spot must be limited within a certain value by regulation.

Therefore, in this embodiment, in order to satisfy the regulations while installing the suction drum 40 on the trunk deck 13 higher than the upper deck 12, the suction drum 40 can be arranged in the blind sector. .

According to the regulations, for structures that come within 10 degrees from the center of the ship 10, blind sector formation is possible within 5 degrees. In the case of the blind sector, it is a part that guarantees minimum safety during the operation process, but provides structural flexibility, and allows it to protrude above the line of sight (VL).

Utilizing this, the present embodiment arranges the suction drum 40 on the trunk deck 13 at the rear of the housing 30 to reduce the size of the housing 30 and to obtain the arrangement efficiency of the components in the housing 30, By placing the suction drum 40 in the form of protruding upward from the line of sight VL within the blind section within 5 degrees of the visible range in the wheelhouse, operational safety can be secured.

A liquefied gas supply line L10 may be provided from the liquefied gas storage tank 20 to the suction drum 40, and the liquefied gas supply line L10 is the dome (signs not shown) of the liquefied gas storage tank 20 . ) may extend from a line (especially a liquid main, etc.) passing through and be connected to the suction drum 40 .

The liquefied gas supply line L10 extends forward from the suction drum 40 and passes through the liquefied gas pump 50, the vaporizer 60, and the heater 70 in sequence, but may be connected to an external demand. Accordingly, the liquefied gas supply line L10 sequentially transmits the liquefied gas to the liquefied gas pump 50 , the vaporizer 60 , and the heater 70 , and supplies the liquefied gas discharged from the heater 70 to the consumer.

A gas meter (not shown) for checking the flow rate may be provided downstream of the heater 70 in the liquefied gas supply line (L10), and finally external through a manifold (not shown) connected to the demand for

In this case, the gas meter and the manifold may be disposed at the rear of the suction drum 40 . Therefore, the liquefied gas supply line (L10) extends forward from the suction drum 40 toward the housing 30, passes through the vaporizer 60, the heater 70, etc., and then is disposed behind the suction drum 40 It can extend rearward toward the exhaust manifold. Alternatively, since the gas meter may be disposed in the housing 30 , the installation position of the gas meter is not particularly limited.

The liquefied gas pump 50 is provided in the housing 30 and pumps the liquefied gas delivered from the liquefied gas storage tank 20 . The liquefied gas pump 50 is disposed on the first part 31 of the housing 30 and may be provided in plurality.

The liquefied gas pump 50 may be a centrifugal type, a reciprocating type, a screw type, or the like, and the type is not limited thereto. However, as the liquefied gas pump 50, a vertical type having a large vertical height compared to a horizontal length may be used as shown in the drawing.

A plurality of liquefied gas pumps 50 may be arranged in the left and right directions within the first part 31 of the housing 30 . For example, as shown in the drawing, six liquefied gas pumps 50 may be provided, and three liquefied gas pumps 50 may be symmetrically disposed on the left and right sides with respect to the center of the housing 30 .

That is, the liquefied gas pump 50 may be arranged to form one row in the left and right directions. At this time, the liquefied gas supply line L10 connected from the suction drum 40 to the liquefied gas pump 50 passes from the suction drum 40 to the plurality of liquefied gas pumps 50 through the liquefied gas pump 50 to the suction. After extending to one side (front) far from the drum 40, it branches in response to each liquefied gas pump 50, and then connects to the other side (rear) from the liquefied gas pump 50 toward the suction drum 40 do.

Specifically, the liquefied gas supply line L10 includes a common line L11 extending from the suction drum 40 to the front of the liquefied gas pump 50 through between the plurality of liquefied gas pumps 50, and a common line L11 ) branched in correspondence to each liquefied gas pump 50 and includes a branch line L12 connected to the rear of the liquefied gas pump 50 . In this case, since the flow rate of the common line L11 is distributed, the branch line L12 may have a relatively small diameter compared to the common line L11.

That is, in this embodiment, the liquefied gas pump 50 is arranged in one row in the left and right direction within the housing 30, so that the common line L11 of a simple structure is arranged in front of the liquefied gas pump 50 to reduce the installation man-hours And it is possible to obtain the effect of improving the space efficiency.

In addition, the liquefied gas supply line L10 has a shape in which a point passing between the plurality of liquefied gas pumps 50 and a point connected to the rear of the liquefied gas pump 50 are located at different heights.

The common line L11 extends from the suction drum 40 toward the liquefied gas pump 50. Considering that the suction drum 40 is provided on the trunk deck 13 higher than the upper deck 12, the common line ( L11) may extend downwardly inside the housing 30 .

In addition, the common line L11 extends downwardly and then forwards through between the plurality of liquefied gas pumps 50 , and extends in the left and right directions corresponding to the arrangement of one row of the liquefied gas pumps 50 . Thereafter, as a plurality of branch lines L12 branching from the common line L11 extend from the front to the rear of the liquefied gas pump 50 and are connected to the rear of the liquefied gas pump 50, the liquefied gas supply line L10 ) (branch line L12) may be provided in a form that surrounds a portion of each of the liquefied gas pump 50.

As such, in this embodiment, the liquefied gas supply line L10 is not directly connected from the suction drum 40 to the rear of the liquefied gas pump 50, but extends to the front of the liquefied gas pump 50 and then liquefied gas again A liquefied gas supply line (L10) connected to the rear of the pump (50) is used.

Through this, in this embodiment, a bendable angle with respect to the liquefied gas supply line L10 can be sufficiently secured, and an extra space can be formed at the rear of the liquefied gas pump 50 within the housing 30 .

The first part 31 of the housing 30 may be provided with a door (not shown) through which a worker can flow in and out on the left and right sides, the liquefied gas supply line L10 extending forward from the suction drum 40 is When connected directly to the rear of the liquefied gas pump 50, the liquefied gas supply line L10 occupies the inner space of the door, thereby preventing the movement of the operator.

On the other hand, in this embodiment, as the liquefied gas supply line L10 has the above-described shape, the rear (branch line L12) of the liquefied gas pump 50 is liquefied in the first part 31 of the housing 30 . A sufficient movement path may be secured in the upper portion of the point connected to the gas pump 50). At this time, the moving passage is used as a moving space of the operator and a maintenance space of the liquefied gas pump 50 .

The vaporizer 60 is provided on one side of the liquefied gas pump 50 in the housing 30, and heats the liquefied gas as a heat medium. The vaporizer 60 may use fruits such as seawater, glycol water, and fresh water, and in particular, non-explosive fruits may be used.

As the vaporizer 60 uses non-explosive heat, the heat supply unit 80 for heating the heat and supplying the heat to the vaporizer 60 may be disposed inside the bow 11 . Of course, the vaporizer 60 may use propane or the like as an explosive heat medium, and in this case, the heat medium supply unit 80 may be disposed outside the hull, unlike described below.

The vaporizer 60 may be provided as a shell & tube type, and may have a cylindrical shape. The vaporizer 60 may be arranged so that the longitudinal direction is parallel to the front-rear direction of the vessel 10 .

A plurality of vaporizers 60 may be provided, and a plurality of vaporizers 60 are arranged in the left and right directions within the housing 30 . At least one liquefied gas pump 50 may be assigned to each vaporizer 60 . That is, the liquefied gas pressurized by the plurality of liquefied gas pumps 50 may be transferred to the vaporizer 60 and vaporized as it is heated by the heat medium.

The vaporizer 60 may heat the liquefied gas according to the temperature required by the customer, and in this case, the heater 70 to be described later may be omitted. However, in the present embodiment, the vaporizer 60 may be provided with a heater 70 for additional heating of the vaporized liquefied gas as the vaporizer 60 heats the liquefied gas to a temperature that does not reach the required temperature of the customer.

The vaporizer 60 may be provided on the second part 32 , and may be installed on the support deck 33 of the second part 32 . In addition, the vaporizer 60 is disposed on the side farther from the liquefied gas pump 50 in the interior of the second part 32 , and in particular, the vaporizer 60 is further away from the liquefied gas pump 50 than the heater 70 . can be placed. That is, the arrangement of the liquefied gas pump 50, the heater 70, and the vaporizer 60 may not coincide with the flow of the liquefied gas, which will be described in detail below.

As described above, the liquefied gas supply line (L10) is a common line (L11) connected to the front of the liquefied gas pump (50) in the suction drum (40), and each liquefied gas pump (50) in the common line (L11) Includes a branch line (L12) connected to.

Also, the liquefied gas supply line L10 may include a pump-carburetor connection line L13 for transferring the liquefied gas discharged from the upper side of the liquefied gas pump 50 to the vaporizer 60 . The pump-carburetor connection line L13 extends from each of the liquefied gas pumps 50 and is provided so that at least two or more are joined to each other.

The pump joined downstream of the liquefied gas pump 50 - the vaporizer connection line (L13) may be branched to each vaporizer (60). However, since the number of liquefied gas pumps 50 may be greater than the number of carburetors 60 , for example, the pump-carburetor connection line L13 is extended from the three liquefied gas pumps 50 and integrated, and then the two carburetors (60) may be branched.

The heater 70 is provided on one side of the vaporizer 60 in the housing 30, and further heats the vaporized liquefied gas as a heat medium. The heat medium used by the heater 70 may be seawater, glycol water, fresh water, and the like, and in particular, the heater 70 and the vaporizer 60 may use the same heat medium.

A plurality of heaters 70 may be arranged in the left and right directions within the housing 30 and may be provided in the same number as the vaporizer 60 . Accordingly, one carburetor 60 may be allocated to the front or rear of one heater 70 to constitute a set, and a plurality of sets may be arranged in the width direction in the housing 30 .

The heater 70 may be disposed relatively closer to the liquefied gas pump 50 than the vaporizer 60 . That is, since the vaporizer 60 is provided at a position relatively farther than the heater 70 with respect to the liquefied gas pump 50, the liquefied gas pump 50, the heater 70, and the vaporizer in the front and rear directions in the housing 30 (60) are arranged in order.

As such, in the vaporizer 60 and the heater 70, the flow in which the liquefied gas is supplied from the liquefied gas pump 50 to the vaporizer 60 is transferred from the vaporizer 60 to the heater 70. Opposite. Accordingly, the flow direction of the liquefied gas may be changed 180 degrees in the process of being transferred from the liquefied gas pump 50 to the vaporizer 60 and the heater 70 .

In this case, the flow path of the liquefied gas may be expanded, but in this embodiment, the heater 70 is closer to the liquefied gas pump 50 than the vaporizer 60 in consideration of the heat supply to the heater 70 and the vaporizer 60 . By placing them, the flow path of the fruit can be optimized.

Specifically, the liquefied gas pump 50 is accommodated in the first part 31 of the housing 30 and the heater 70 and the vaporizer 60 are accommodated in the second part 32 of the housing 30, the first As the first part 31 is supported on the upper deck 12 and the supporting deck 33 of the second part 32 is spaced apart from the upper deck 12, the heat supplied to the heater 70, etc. It flows into the housing 30 through the first part 31 .

At this time, the heat medium is transferred to the vaporizer 60 after passing through the heater 70 , and when the liquefied gas pump 50 , the vaporizer 60 , and the heater 70 are sequentially arranged, the flow of the heat medium is the heater 70 . It may be changed 180 degrees in the process of being delivered to the vaporizer 60 via the.

Since a large amount of the fruit can be supplied to smoothly heat the liquefied gas, the present embodiment can reduce the cost by minimizing the flow path of the fruit. Therefore, instead of the liquefied gas pump 50, the vaporizer 60, and the heater 70 in the front-rear direction in the housing 30, the liquefied gas pump 50, the heater 70, and the vaporizer 60 are arranged in the order can do.

At this time, the liquefied gas delivered from the liquefied gas storage tank 20 goes through the liquefied gas pump 50 of the first part 31 to the vaporizer 60 of the second part 32 along the first direction (forward). After being delivered, it may be delivered to the heater 70 of the second portion 32 along a second direction (rear) opposite to the first direction.

The liquefied gas supply line (L10) extends along the first direction from the liquefied gas pump 50 to the carburetor 60 and is connected to the carburetor 60. As described above, it includes a pump-carburetor connection line (L13). same. Furthermore, the liquefied gas supply line L10 may further include a vaporizer-heater connection line L14 extending from the vaporizer 60 in a second direction opposite to the first direction and connected to the heater 70. .

In addition, the liquefied gas supply line (L10) may be extended from the heater (70) toward the external demand, and a vaporization train line (L15) is provided from the heater (70) to the manifold provided in the center of the vessel (10). can be

Specifically, the vaporization train line L15 extends from the heater 70 to a predetermined point along the first direction and extends along the second direction to form a U-shape, and liquefied gas toward the consumer outside the housing 30 . to convey

That is, the liquefied gas supply line L10 extends along the first direction (forward) from the liquefied gas pump 50 toward the vaporizer 60 and is connected to the vaporizer 60, and in the vaporizer 60, opposite to the first direction It extends along the second direction (rear) to be connected to the heater 70, extends from the heater 70 to a certain point in the first direction (forward), and then extends along the second direction (rear) to the housing ( 30) Delivers liquefied gas to external consumers.

Accordingly, the liquefied gas supply line L10 may include a plurality of points at which the direction extending along the front-rear direction is reversed when viewed from above as shown in FIG. 4 . Specifically, the extension direction is changed from the front to the rear at the portion where the branch line L12 is connected in the common line L11, and the branch line L12 surrounds the liquefied gas pump 50 and the rear of the liquefied gas pump 50 The direction of extension is also switched from rear to front when connected to

In addition, the pump-carburetor connection line (L13) and the vaporizer-heater connection line (L14) may extend in opposite directions to each other, and the vaporization train line (L15) extends from the heater (70) and extends in the direction of extension from the front at a certain point. can be switched backwards.

The pump-carburetor connection line (L13), the vaporizer-heater connection line (L14), and the vaporization train line (L15) may be provided at least partially parallel to each other, and the portions provided in parallel to each other as in FIG. 6 . Interference does not occur by being placed at different heights.

In particular, the vaporization train line (L15) of the liquefied gas supply line (L10) extends from the plurality of heaters (70) and is provided to be integrated at a certain point after passing through the valve unit (V10). The valve unit V10 is a configuration for adjusting the flow rate, pressure, etc. of the liquefied gas delivered from the heater 70 to the demand, and may be composed of a valve group including at least one control valve and the like.

The valve unit V10 may be of a configuration that requires operation or maintenance by an operator. Accordingly, a platform 90 allowing the movement of the operator may be provided on one side of the portion where the valve unit V10 is provided in the liquefied gas supply line L10. In this case, the platform 90 may be provided in parallel in the front-rear direction between the plurality of heaters 70 and between the plurality of vaporizers 60 .

Specifically, the platform 90 may be arranged in at least one of two structures as shown in FIG. 5 . As an example, according to (A) of Figure 5, when the vaporization train line (L15) is extended from the two heaters 70 and two valve units (V10) are provided, the platform 90 is each valve unit (V10) may be individually placed on the left or right side of the

In this case, the operator may be positioned on the left platform 90 to check the left valve unit (V10), and positioned on the right platform 90 to check the right valve unit (V10).

Alternatively, in this embodiment, instead of allocating the platform 90 to each valve unit V10, one platform 90 may have a structure that enables the check of at least two or more valve units V10. Referring to FIG. 5B , the platform 90 may be disposed between the valve units V10 provided in the liquefied gas supply line L10 extending from each heater 70 .

That is, the platform 90 may be provided in parallel along the front-rear direction between parts parallel to the front-rear direction in the liquefied gas supply line L10 extending from each heater 70 . In this case, the vaporizer 60 , the heater 70 , and the valve unit V10 may be symmetrically disposed in the left and right directions with respect to the platform 90 .

Therefore, in the case of Figure 5 (B) compared to Figure 5 (A), since maintenance of two or more valve units (V10) is possible by one platform (90), it is possible to obtain the effect of reducing the quantity and increasing the space utilization. .

The heat medium supply unit 80 sequentially supplies heat to the heater 70 and the vaporizer 60 . As described above, since the heat may be non-explosive such as seawater or glycol water, the heat supply unit 80 may be provided inside the bow 11 of the ship 10 .

The heat medium supply unit 80 may be provided to heat the non-explosive heat source with a non-explosive heat source, for example, by using seawater to heat the heat medium which is glycol water and supply it to the heater 70 .

The heat supply unit 80 supplies heat to the vaporizer 60 and the heater 70 through the heat supply line L20, and the vaporizer 60 and the heater 70 are arranged in series in the heat supply line L20. In particular, the vaporizer 60 is provided downstream of the heater 70 based on the flow of the heat medium. Therefore, the heat may be introduced into the vaporizer 60 after passing through the heater 70 first. This is to smoothly heat the temperature of the liquefied gas in the heater 70 to meet the required temperature of the customer.

The housing 30 has a first portion 31 supported by the upper deck 12, and a second portion 32 extending forwardly from the first portion 31 and spaced upwardly from the upper deck 12. , the heat supply line (L20) may be connected to the heater (70) by extending from the inside of the bow (11) to the second part (32) through the inside of the first part (31).

That is, the heat medium supplied to the housing 30 by the heat medium supply unit 80 can pass through the heater 70 and the vaporizer 60 sequentially while being transferred to the second part 32 via the first part 31 . there is.

The heat supply line (L20) may have a larger diameter than the liquefied gas supply line (L10). Considering the installation cost or space utilization, it is preferable to preferentially reduce the length of the heat supply line (L20). . Therefore, in the present embodiment, the heater 70 of the vaporizer 60 and the heater 70 is disposed adjacent to the first portion 31, so that the path of the heat medium can be minimized.

However, since the vaporizer 60 is disposed farther from the liquefied gas pump 50 than the heater 70 , the path of the liquefied gas, unlike the path of the heat medium, is between the liquefied gas pump 50 and the heater 70 . It has a structure that makes a U-turn while going through (60), so it can be made rather long.

The heat supply line L20 passes through the first part 31 of the housing 30 and the second part 32 of the housing 30 (the heater 70, the vaporizer 60) in the heat supply unit 80. Afterwards, a circulation line circulating back to the heat supply unit 80 may be provided to constitute a closed loop with respect to the heat medium.

However, the heat medium expansion tank 81 may be branched to the heat supply line L20. The heat medium expansion tank 81 may be connected to the heat medium pressure control line L21 branched from the closed loop in which the heat medium circulates, and is provided to adjust the flow rate or pressure of the heat medium circulating.

The heat medium expansion tank 81 temporarily stores the fruit and adjusts the pressure of the fruit. The heat medium expansion tank 81 may have a container shape to store heat, and in particular, in this embodiment, the heat medium expansion tank 81 may be formed in the inner wall 34 of the housing 30 .

That is, the heat medium expansion tank 81 may be integrally formed with the housing 30 with the inner wall 34 of the housing 30 as one surface as shown in FIG. 8 . In addition, the heat medium expansion tank 81 is provided with the inner wall 34 of the housing 30 as a side surface and a lower surface spaced apart upward from the support deck 33 to secure a sufficient installation height of the heat medium expansion tank 81 .

As described above, the heat supplied to the housing 30 by the heat supply unit 80 passes through the heater 70 and the vaporizer 60 sequentially while being delivered to the second part 32 via the first part 31 . However, the heat medium expansion tank 81 is provided at a corner at a position far from the first part 31 in the second part 32 , the front and rear inner wall 34 and the left and right inner wall 34 of the second part 32 . It may be integrally formed in the second part 32 with two sides.

Therefore, in the present embodiment, as the heat medium expansion tank 81 is angled on the inner wall 34 of the housing 30 , there is no need to mount a separate tank structure in the housing 30 , so space utilization can be increased. In addition, since the heat medium expansion tank 81 is surrounded by the wall of the housing 30, the stability can be improved in using the heat medium while minimizing the influence of the external environment.

Of course, in addition to this, the heat medium expansion tank 81 may be provided in various non-limited positions/forms to temporarily store heat and reduce the external environmental load by the housing 30 .

The drain unit 100 processes the gas leaking from the housing 30 . The drain unit 100 will be described with reference to FIGS. 9 and 10 . First, referring to FIG. 9 , the drain unit 100 may include a drain line L30 for discharging the gas leaking from the housing 30 to the outside of the vessel 10 . The drain line L30 may extend from the lowermost side in the housing 30 , and for example, one end of the drain line L30 is disposed at the bottom of the first part 31 of the housing 30 .

At this time, in the housing 30, the bottom of the first part 31 or the supporting deck 33 of the second part 32 may be made of low-temperature steel or stainless steel so that the leaking gas does not cause any problems.

In addition, the drain unit 100 may process gas leaking from the suction drum 40 installed outside the housing 30 . To this end, the drain unit 100 is provided under the suction drum 40 and includes a drum coaming 101 that collects gas leaking from the suction drum 40 .

The drum coaming 101 may also be made of low-temperature steel or the like as described above, and the drum coaming 101 has a leaking gas delivery line L31 toward the drain line L30 provided in the first part 31 of the housing 30 . With this arrangement, the gas collected in the drum coaming 101 may be transferred to the drain line L30.

Alternatively, the drain unit 100 of the present embodiment may include a pump combing 102 , a vaporizer combing 103 , an integrated combing 104 , and the like, as in FIG. 10 , unlike FIG. 9 . That is, the drain unit 100 is provided below the liquefied gas pump 50 and collects the gas leaking from the liquefied gas pump 50, the pump coaming 102, and the vaporizer 60 is provided under the vaporizer 60. It may include a vaporizer coaming 103 that collects gas leaking from it.

The pump coaming 102 and the carburetor coaming 103 may be provided to have an area covering all of the lower side of the liquefied gas pump 50 or the carburetor 60, or the part where leakage is concerned in the liquefied gas pump 50, etc. It may be provided to have an area that covers only the However, in the latter case, the pump coaming 102 may be provided in plurality.

The integrated coaming 104 may introduce gas collected from the pump coaming 102 and the carburetor coaming 103 . The integrated coaming 104 may be disposed on the first portion 31 of the housing 30 , and may be configured to collect all of the gas leaked within the housing 30 .

The leak gas delivery line L31 can be extended from the pump coaming 102, the carburetor coaming 103, the drum coaming 101, etc. to the integrated coaming 104, so that the leak gas delivery line L31 is passed through the drum Gas collected in the coaming 101 , the pump coaming 102 or the carburetor coaming 103 may be delivered to the integrated coaming 104 .

The integrated coaming 104 has a drain line L30 extending to the outside of the vessel 10 , so that the gas introduced into the integrated coaming 104 may be discharged overboard. As such, in this embodiment, the contact of the gas exposed from the liquefied gas pump 50 or the vaporizer 60 to the bottom surface of the housing 30 by using the integrated coaming 104 shown in FIG. 10 can be prevented. Therefore, unlike in FIG. 9 , in the case of FIG. 10 , the bottom surface of the housing 30 may be made of carbon steel or general steel, so that the installation cost for the housing 30 can be significantly reduced.

The drain line (L30) drains the leaking gas to the side shell plate of the ship (10), and at this time, it is possible to protect the hull by spraying seawater or the like on the hull. And/or the drain line L30 may discharge the leaking gas to the sea level, and a detachable hose is applied to the drain line L30, so that the leaking gas can be discharged below the sea level. That is, the drain line L30 may be branched to enable drain to the hull or the sea level.

After checking the leak through an alarm such as temperature, the drain unit 100 discharges the leaked gas to the sea level by opening a drain valve (not shown), so that it is possible to omit spraying the leaked gas to the hull.

In addition, the drain unit 100 can implement a drain even when rainwater is collected in the integrated coaming 104 rather than when the leaking gas is collected in the integrated coaming 104 , but only leaked in the housing 30 . Gas can be discharged to the sea level, and foreign substances such as rainwater can be discharged through the side shell. Therefore, the drain part 100 can prevent the hull from being damaged by the contact of the leaking gas by selectively controlling the appropriate drain.

A plurality of connection parts FL connected by a flange are provided in the liquefied gas supply line L10, and a protective cover 110 may be provided on the plurality of connection parts FL. The protective cover 110 is provided in plurality so as to cover the connection portion FL, respectively.

As described in FIG. 9 , when the gas leaking from the housing 30 is collected through the bottom surface of the housing 30 and the bottom surface of the housing 30 is made of low-temperature steel, the protective cover 110 may be omitted. However, in this embodiment, as described with reference to FIG. 10, in order to manufacture the bottom surface of the housing 30 of an inexpensive material such as general steel, components for collecting the leaking gas may be arranged in leakable areas. .

The gas collection configuration disposed in the leakable part may be the pump combing 102, the vaporizer combing 103, and the protective cover 110 to be described later, etc., as described above, and also the heater combing (not shown) in the heater 70. It goes without saying that this can be arranged.

The pump coaming 102, etc. is a configuration for collecting leaking gas with respect to a configuration that operates to regulate the temperature or pressure of the liquefied gas, whereas the protective cover 110 is a gas that can leak on the path where the liquefied gas flows. It may be a configuration for collecting . Such a protective cover 110 may be referred to as a spray shield or the like.

The protective cover 110 may be provided with at least two types as shown in FIG. 11 . First, in the case of FIG. 11A , the protective cover 110 covers the connection portion FL, but the tray 112 may be provided on the lower side. The protective cover 110 may be applied to the connection portion FL in which the liquefied gas flows in a relatively horizontal direction.

The protective cover 110 shown in (A) of FIG. 11 can prevent the leaking gas from leaking by tightly surrounding the connection part FL, and the leaking gas flowing into the protective cover 110 is the protective cover 110 ) is collected by the tray 112 under the protective cover 110 through the outlet 111 provided on the lower side. At this time, the gas collected in the tray 112 is discharged to the outside of the vessel 10 through the drain line L30 or the like.

That is, the protective cover 110 according to (A) of FIG. 11 is provided with an outlet 111 for discharging the leaking gas while enclosing the connecting portion FL through which the liquefied gas flows horizontally, and the tray 112 ) is provided below the outlet 111 .

Contrary to this, the protective cover 110 shown in (B) of FIG. 11 covers the connection portion FL, but does not include a separate tray 112 . The protective cover 110 according to (B) of FIG. 11 may be applied to the connection portion FL in which the liquefied gas flows in a relatively vertical direction.

Specifically, in the protective cover 110 according to FIG. 11B , the drain line L30 may be directly connected to the protective cover 110 . That is, the drain line L30 is connected to the protective cover 110 , and the gas leaked from the connection part FL and introduced into the protective cover 110 may be discharged to the outside of the ship 10 , etc. At this time, the drain line L30 is connected to the outlet 111 provided to discharge the gas leaking from the protective cover 110 .

As such, in the present embodiment, at least two types of protective covers 110 and corresponding drain lines L30 are provided for the connection portion FL of the horizontally or vertically extended portion from the liquefied gas supply line L10. By application, it is possible to collect all of the gas leaking from the liquefied gas supply line (L10). Therefore, in the present embodiment, it is possible to prevent the contact of the gas leaking from the connection portion FL to the bottom surface of the housing 30 .

As such, in this embodiment, by optimizing the configuration for regasification in the housing 30 disposed on the bow 11 and the upper deck 12, manufacturing cost reduction, space utilization increase and maintenance efficiency improvement, etc. can have an effect.

12 is a partial side view of the vessel 10 according to the second embodiment of the present invention, and FIG. 13 is a partial plan view of the vessel 10 according to the second embodiment of the present invention.

Hereinafter, with reference to Figs. 12 and 13, the present embodiment will be mainly described in terms of differences from the previous embodiment. It should be noted that the omitted part is replaced with the previous content, and this is also the case for the third embodiment.

In this embodiment, the blind section mentioned in the description of the suction drum 40 above can also be applied to the carburetor 60 and the like. That is, the carburetor 60 of this embodiment has a shape that protrudes upward from the line of sight (VL) that is drawn by understanding the upper side of the front end of the housing 30 in the wheelhouse of the ship 10, the portion that protrudes from the line of sight (VL) It can be located within a period of blindness within 5 degrees of the visible range in the wheelhouse.

The vaporizer 60 is provided as a vertical type having a larger vertical height than a horizontal length, which is similar to that described in the liquefied gas pump 50 . That is, in this embodiment, the liquefied gas pump 50 and the vaporizer 60 are provided in a vertical type so that the front and rear lengths of the housing 30 can be reduced, and the blind section is used to satisfy international regulations in terms of safety without problems. can do it

As such, in this embodiment, the carburetor 60, which was provided as a horizontal type in the previous embodiment, is changed to a vertical type, but the carburetor 60 protruding upward in the housing 30 is placed in the blind section. The regulations can be satisfied and the size of the housing 30 can be greatly reduced.

14 is a plan view of a gas processing system according to a third embodiment of the present invention.

Referring to FIG. 14 , in the gas processing system 1 according to the third embodiment of the present invention, a suction drum 40 may be disposed in a housing 30 . For example, the suction drum 40 may be disposed among the plurality of pumps, and the liquefied gas supply line L10 may extend in the left and right directions from the suction drum 40 .

In this embodiment, as described in the second embodiment, a free space can be secured inside the housing 30 by using the vaporizer 60 as a vertical type, and at this time, the liquefied gas pump 50, By improving the arrangement of the heater 70 , the suction drum 40 may be installed in the housing 30 .

Therefore, in this embodiment, unlike the first and second embodiments in which the suction drum 40 is separately installed on the trunk deck 13, the trunk deck 13 is located inside the housing 30 supported by the upper deck 12. installed, it is possible to minimize the movement of workers and increase space utilization.

In this case, the liquefied gas pump 50 may be arranged side by side in the left and right direction as shown in the drawing, or it is also possible to form a triangular composition by being displaced from each other in the left and right and front and rear directions in order to secure an arrangement space for the suction drum 40 .

In addition to the embodiments described above, the present invention may further include a combination of at least one embodiment and a known technology and a combination of at least two or more embodiments.

Although the present invention has been described in detail through specific examples, this is for the purpose of describing the present invention in detail, and the present invention is not limited thereto. It will be clear that the transformation or improvement is possible.

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific protection scope of the present invention will become apparent from the appended claims.

1: gas treatment system 10: ship
11: Player 12: Upper deck
13: trunk deck 20: liquefied gas storage tank
30: housing 31: first part
32: second part 33: support deck
34: inner wall 40: suction drum
50: liquefied gas pump 60: carburetor
70: heater 80: heat supply unit
81: fruit expansion tank 90: platform
100: drain 101: drum combing
102: pump coaming 103: carburetor coaming
104: integrated coaming 110: protective cover
111: outlet 112: tray
FL: Connection L10: Liquefied gas supply line
L11: common line L12: branch line
L13: Pump-carburetor connection line L14: Carburetor-heater connection line
L15: vaporization train line V10: valve unit
L20: Heat supply line L21: Heat pressure control line
L30: drain line L31: leak gas delivery line
VL: line of sight

Claims (6)

a housing provided on the bow deck of the ship on which the liquefied gas storage tank is mounted;
a liquefied gas pump provided in the housing and pumping the liquefied gas delivered from the liquefied gas storage tank;
a vaporizer provided on one side of the liquefied gas pump in the housing and heating the liquefied gas as a heat medium;
a heater provided on one side of the vaporizer in the housing and additionally heating the vaporized liquefied gas as a heat medium; and
and a liquefied gas supply line for sequentially transferring the liquefied gas of the liquefied gas storage tank to the liquefied gas pump, the vaporizer and the heater,
The heater is
A plurality is arranged in the housing,
The liquefied gas supply line is
Each of the plurality of heaters is extended and provided to be integrated at a certain point after passing through the valve unit,
Further comprising a platform disposed parallel to one side of the portion in which the valve unit is provided in the liquefied gas supply line, the gas processing system. According to claim 1, wherein the platform,
disposed between the valve units provided in the liquefied gas supply line extending from each of the heaters. According to claim 1, wherein the heater,
A plurality of them are arranged in the left and right directions in the housing,
The platform is
A gas processing system that is provided side by side in the front-rear direction between the parts parallel to the front-rear direction in the liquefied gas supply line extending from each of the heaters. According to claim 1, wherein the vaporizer,
A plurality of sets are arranged in the housing along the left and right directions to form a set with the heater,
The platform is
A gas processing system provided in parallel along the front-rear direction between the plurality of heaters and between the plurality of the vaporizers. According to claim 1, wherein the vaporizer, the heater and the valve unit,
The gas processing system, which is arranged symmetrically in the left and right directions with respect to the platform. A ship having the gas treatment system according to claim 1 .

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