KR20160126149A - A Cooling Apparatus for Ship - Google Patents

A Cooling Apparatus for Ship Download PDF

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Publication number
KR20160126149A
KR20160126149A KR1020150056622A KR20150056622A KR20160126149A KR 20160126149 A KR20160126149 A KR 20160126149A KR 1020150056622 A KR1020150056622 A KR 1020150056622A KR 20150056622 A KR20150056622 A KR 20150056622A KR 20160126149 A KR20160126149 A KR 20160126149A
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KR
South Korea
Prior art keywords
cooling
unit
pump
cooling unit
amount
Prior art date
Application number
KR1020150056622A
Other languages
Korean (ko)
Inventor
윤성호
김윤성
Original Assignee
현대중공업 주식회사
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Application filed by 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR1020150056622A priority Critical patent/KR20160126149A/en
Publication of KR20160126149A publication Critical patent/KR20160126149A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0341—Heat exchange with the fluid by cooling using another fluid
    • F17C2227/0348—Water cooling
    • F17C2227/0351—Water cooling using seawater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/03—Treating the boil-off
    • F17C2265/032—Treating the boil-off by recovery
    • F17C2265/033—Treating the boil-off by recovery with cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The present invention relates to a liquefied petroleum gas storage device comprising a storage part for storing liquefied petroleum gas and installed in a ship, a first cooling part for liquefying vapor gas generated from liquefied petroleum gas stored in the storage part with seawater, A second cooling unit installed in the first cooling unit for cooling the gas using seawater and spaced apart from the first cooling unit, and a control unit for controlling the amount of vapor gas discharged from the storage unit when the stored liquefied petroleum gas is in the operation mode, And a control unit for stopping the operation of the first cooling unit when the amount of exhaust gas is less than the emission amount.

Description

[0001] The present invention relates to a cooling apparatus for a ship,

The present invention relates to a ship cooling apparatus for cooling vapor gas generated in an LPG storage tank.

In general, LPG (Liquefied Petroleum Gas) vessels store liquefied petroleum gas due to the storage density problem of petroleum gas. Liquefied petroleum gas is stored in the LPG storage tank at a low temperature of minus 45 ° C, so the gas is always evaporating in the LPG storage tank. The gas that evaporates is called a vapor gas. Vapor gas can be generated by heat input through a storage tank or piping, or by convection due to liquid layer formation. In order to prevent the LPG storage tank from exploding, the vapor gas is drawn out by an air blower, and is re-liquefied and sent back to the storage tank. In order to re-liquefy such vapor gas, a cooling device is installed on the ship.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a ship cooling system according to the prior art; FIG.

Referring to FIG. 1, the ship cooling apparatus 10 according to the related art includes an exhaust unit 11 installed in a storage tank 20 installed on a ship, a cooling mechanism 12 installed to be connected to the exhaust unit 11 And a supply member 13 for connecting the cooling mechanism 12 and the storage tank 20. The exhaust member (11) transfers the vapor gas discharged from the storage tank (20) to the cooling device (12). The cooling mechanism (12) cools the vapor gas supplied from the exhaust member (11) by using sea water. The supply member (13) supplies the liquefied petroleum gas cooled by the cooling mechanism (12) to the storage tank (20).

The ship cooling apparatus 10 according to the related art uses a cooling mechanism 12 having a capacity corresponding to the maximum amount of vapor gas that can be generated in the storage tank 20 during ship operation, 20 were cooled. However, during the normal operation of the LPG vessel, only a small amount of vapor gas is generated in the storage tank 20 than the maximum amount of the vapor gas. Accordingly, the marine cooling system 10 according to the related art has a problem that unnecessary fuel loss is generated as the cooling mechanism 12 always operates in correspondence with the maximum generation amount of the vapor gas.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a ship cooling apparatus capable of preventing excessive consumption of fuel to cool vapor gas discharged from a storage tank.

In order to solve the above-described problems, the present invention can include the following configuration.

A ship cooling apparatus according to the present invention includes: a storage unit installed in a ship for storing liquefied petroleum gas; A first cooling unit for liquefying the vapor gas generated from the liquefied petroleum gas stored in the storage unit with seawater; A second cooling unit for cooling the vapor gas discharged from the storage unit using seawater and being spaced apart from the first cooling unit; And a control unit for stopping the operation of the first cooling unit when the amount of the vapor gas discharged from the storage unit is equal to or less than a preset reference emission amount in a navigation mode for transporting the stored liquefied petroleum gas.

In the ship cooling apparatus according to the present invention, the control unit may operate the first cooling unit when the amount of the vapor gas discharged from the storage unit exceeds the predetermined reference discharge amount in the operation mode.

The ship cooling apparatus according to the first embodiment of the present invention includes a first pump for supplying seawater used for washing a deck, a first piping section connecting the first pump and the first cooling section, And a first valve installed in the first pipe and opening / closing the first pipe so that the seawater supplied by the first pump is supplied to the first cooling unit. The control unit activates the first valve to open the first piping unit when the amount of the vapor gas discharged from the storage unit exceeds the reference discharge amount in the unloading mode for unloading the stored liquefied petroleum gas, The cooling section and the first pump can be operated.

A ship cooling apparatus according to a second embodiment of the present invention includes a second pump for supplying seawater used to generate an inert gas, a second piping section connecting the second pump and the first cooling section, And a second valve installed in the piping section and opening / closing the second piping section so that the seawater supplied by the second pump is supplied to the first cooling section. Wherein the control unit activates the first cooling unit when the amount of the vapor gas discharged from the storage unit exceeds the reference discharge amount in the unloading mode for unloading the stored liquefied petroleum gas, The first valve or the second valve may be actuated to open one of the first and second valves so that the first pump or the second pump may be operated according to the opened piping.

According to the present invention, the following effects can be achieved.

The present invention can reduce the operating cost of operating the vessel by reducing the fuel consumed to cool the vapor gas discharged from the storage tank.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic conceptual view showing a ship cooling system according to the prior art; FIG.
2 is a schematic conceptual view of a ship cooling apparatus according to the present invention.
3 is a schematic conceptual diagram for explaining the first pump in the ship cooling apparatus according to the first embodiment of the present invention.
4 is a schematic conceptual diagram for explaining the second pump in the marine cooling device according to the second embodiment of the present invention.

It should be noted that, in the specification of the present invention, the same reference numerals as in the drawings denote the same elements, but they are numbered as much as possible even if they are shown in different drawings.

Meanwhile, the meaning of the terms described in the present specification should be understood as follows.

The word " first, "" second," and the like, used to distinguish one element from another, are to be understood to include plural representations unless the context clearly dictates otherwise. The scope of the right should not be limited by these terms.

It should be understood that the terms "comprises" or "having" does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

It should be understood that the term "at least one" includes all possible combinations from one or more related items. For example, the meaning of "at least one of the first item, the second item and the third item" means not only the first item, the second item or the third item, but also the second item and the second item among the first item, Means any combination of items that can be presented from more than one.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a ship cooling apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a schematic conceptual view of a ship cooling apparatus according to the present invention, FIG. 3 is a schematic conceptual view for explaining a first pump in a ship cooling apparatus according to the present invention, and FIG. And is a schematic conceptual diagram for explaining the pump.

Referring to FIG. 2, the ship cooling apparatus 100 according to the present invention is for cooling vapor gas generated in a storage unit for liquefying and storing petroleum gas. In the ship cooling apparatus 100 according to the present invention, when the ship is in a voyage mode in which liquefied petroleum gas is filled in the storage unit, the maximum amount of vapor gas generated in the storage unit (hereinafter, (Hereinafter referred to as the " maximum amount of generated gas "), it is possible to prevent excessive consumption of fuel to cool the vapor gas.

for teeth. The ship cooling apparatus 100 according to the present invention includes a storage unit 110 for storing liquefied petroleum gas, a first cooling unit for liquefying the vapor gas generated from the liquefied petroleum gas stored in the storage unit with seawater 120), a second cooling unit (130) for cooling the vapor gas discharged from the storage unit using seawater and spaced apart from the first cooling unit, and a second cooling unit And a control unit (140) for stopping the operation of the first cooling unit when the amount of vapor gas discharged from the storage unit is less than a preset reference emission amount.

The storage unit 110 is installed in the ship and stores the petroleum gas in a liquefied state in order to increase the storage amount. For example, the storage unit may store liquefied petroleum gas (LPG) at a temperature of minus 45 ° C. The first cooling unit 120 may cool the vapor gas with liquefied petroleum gas by lowering the temperature of the vapor gas using seawater. The first cooling unit 120 may cool the vapor gas discharged from the storage unit 110 at a maximum amount when the ship is in the operating mode. For example, when the maximum amount of generated vapor gas generated in the storage unit 110 in the operation mode of the ship is 100, the first cooling unit 120 can cool 100 vapor gas. The second cooling unit 130 can cool the baffle gas generated less than the maximum amount of the generated vapor gas. For example, the second cooling unit 130 may cool 50% of 100 vapor gas that the first cooling unit 120 can cool. Accordingly, since the second cooling unit 130 has a smaller capacity for cooling the vapor gas than the first cooling unit 120, the second cooling unit 130 may be formed to have a size smaller than that of the first cooling unit 120. The reference emission amount refers to 50% of the maximum amount of generated vapor gas generated from the storage unit 110 when the ship is in the operation mode. The reference emission amount can be preset by the operator.

Accordingly, the marine cooling apparatus 100 according to the present invention can cool the vapor gas discharged to 50% or less of the maximum generation amount by installing the second cooling unit 130. [ Accordingly, since the marine cooling system 100 according to the present invention can stop the first cooling unit 120 having a larger cooling processing capacity than the second cooling unit 130, it is possible to prevent fuel loss from occurring .

Hereinafter, the storage unit 110, the first cooling unit 120, the second cooling unit 130, and the control unit 140 will be described in detail with reference to the accompanying drawings.

Referring to FIG. 2, the storage unit 110 is installed in a ship and stores liquefied petroleum gas (LPG). The storage unit 110 stores liquefied petroleum gas obtained by liquefying the petroleum gas at a low temperature in order to increase the storage density. For example, the temperature of the liquefied petroleum gas stored in the storage unit 110 reaches minus 45 ° C. Accordingly, the storage unit 110 is designed and constructed to withstand low temperatures. Since the low temperature liquefied petroleum gas is stored in the storage part 110, vapor gas is generated through various paths such as heat input through the piping. Such a vapor gas may increase the internal pressure of the storage part 110 and cause explosion. In addition, if the vapor gas leaks to the outside, the environment may be contaminated. In order to prevent this, the storage unit 110 is installed to be connected to the first cooling unit 120 and the second cooling unit 130. In this case, the vapor gas may be cooled and liquefied by at least one of the first cooling unit 120 and the second cooling unit 130. The liquefied vapor gas is converted into liquefied petroleum gas and supplied to the storage unit 110 again. Accordingly, the internal pressure of the storage unit 110 may be lowered. The vapor generated in the storage part 110 may be transferred to the first cooling part 120 and the second cooling part 130 through a blower or an impeller.

Referring to FIG. 2, the first cooling unit 120 liquefies the vapor gas generated from the liquefied petroleum gas stored in the storage unit 110 with seawater. For example, the first cooling unit 120 can cool the vapor gas by indirectly exchanging seawater and vapor gas after sucking seawater around the vessel through the pump. The vapor gas passing through the first cooling unit 120 may be cooled by the liquefied petroleum gas and supplied to the storage unit 110 again. The first cooling unit 120 has a larger capacity to cool the vapor gas than the second cooling unit 130. [ For example, assuming that the maximum amount of vapor gas discharged from the storage unit 110 is 100, the first cooling unit 120 is installed at a capacity capable of processing 100 vapor gas. On the other hand, the second cooling unit 130 is installed at a capacity capable of treating 50% of the maximum generation amount, that is, 50% of the vapor. Therefore, it can be said that the capacity of the first cooling unit 120 to cool the vapor gas is larger than that of the second cooling unit 130. Since the processing capacity is proportional to the size, the size of the first cooling unit 120 is larger than that of the second cooling unit 130. [ Also, since the processing capacity is proportional to the consumption amount of power or fuel, the consumption amount of fuel of the first cooling part 120 is larger than the consumption amount of fuel of the second cooling part 130. The first cooling unit 120 may be connected to the controller 140 through at least one of wire communication and wireless communication.

Referring to FIG. 2, the second cooling unit 130 cools the vapor gas discharged from the storage unit 110 using seawater. Like the first cooling unit 120, the second cooling unit 130 can also cool the vapor gas by indirectly exchanging the sea water with the vapor gas after sucking seawater around the ship through the pump. The vapor gas passing through the second cooling unit 130 may be cooled by the liquefied petroleum gas and supplied to the storage unit 110 again. The capacity of the second cooling unit 130 to cool the vapor gas is smaller than that of the first cooling unit 120. [ For example, the second cooling unit 130 is installed at a capacity capable of treating 50% of the maximum amount of generated vapor gas generated in the storage unit 110. Therefore, the second cooling unit 130 is smaller than the first cooling unit 120, and the consumed fuel amount is less than the first cooling unit 120. [ The second cooling unit 130 is spaced apart from the first cooling unit 120. The first cooling unit 120 and the second cooling unit 130 may be connected to the storage unit 110 to receive the vapor gas. However, in this case, when the first cooling unit 120 stops operating, the vapor gas may be cooled through the second cooling unit 130. When the second cooling unit 130 stops operating, the vapor gas may be cooled through the first cooling unit 120. Accordingly, in the ship cooling apparatus 100 according to the present invention, the first cooling unit 120 and the second cooling unit 130 operate independently of each other, so that the first cooling unit 120 and the second cooling unit 130 It is possible to cool the vapor gas even if one of the cooling units 130 is damaged or broken. The second cooling unit 130 may be connected to the controller 140 through at least one of wire communication and wireless communication.

Referring to FIG. 2, the controller 140 may control the first cooling unit 120 and the second cooling unit 130 using at least one of a wired communication method and a wireless communication method. If the amount of vapor gas discharged from the storage unit 110 is less than a preset reference discharge amount, the control unit 140 controls the first cooling unit 120 to cool the liquefied petroleum gas, Stop operation. For example, the control unit 140 may stop the first cooling unit 120 by shutting off the power supplied to the first cooling unit 120. [ In this case, the vapor gas discharged from the storage unit 110 may be cooled by the second cooling unit 130. The cooled vapor gas may be converted into liquefied petroleum gas and supplied to the storage unit 110. The reference emission amount is as described above and can be set in advance by an operator.

The control unit 140 operates the first cooling unit 120 when the amount of the vapor gas discharged from the storage unit 110 exceeds a predetermined reference discharge amount when the ship is in the operation mode. For example, the controller 140 may operate the first cooling unit 120 by supplying power to the first cooling unit 120. [ In this case, the vapor gas discharged from the storage unit 110 may be cooled through the first cooling unit 120 and the second cooling unit 130. For example, when the emission amount of the vapor gas exceeds the reference emission amount and is discharged to the maximum generation amount in the operation mode, the control unit 140 operates only the first cooling unit 120 and operates the second cooling unit 130 It may not. Since the amount of the vapor gas is between 50 and 100, the first cooling unit 120 can cool all the generated vapor gas. In this case, since the marine cooling system 100 according to the present invention can stop the operation of the second cooling unit 130, when both the first cooling unit 120 and the second cooling unit 130 are operated The power and fuel consumption can be reduced. The cooled vapor gas may be converted into liquefied petroleum gas and supplied to the storage unit 110.

Accordingly, the marine cooling system 100 according to the present invention can achieve the following operational effects.

First, the ship cooling apparatus 100 according to the present invention stops the operation of the first cooling unit 120 and stops the operation of the second cooling unit 120 when the amount of vapor gas discharged from the storage unit 110 is less than the reference discharge amount 130 are operated so that the loss of fuel can be prevented from occurring compared with the conventional one.

Second, since the first cooling unit 120 and the second cooling unit 130 can operate independently of each other in the marine cooling system 100 according to the present invention, the first cooling unit 120 and the second cooling unit 130 Even if one of the cooling parts of the cooling part 130 is damaged or broken, the other cooling part can cool the vapor of the vapor.

3, the ship cooling apparatus 100 according to the first embodiment of the present invention may further include a first pump 150, a first pipe unit 160, and a first valve 170. [

The first pump 150 is installed in the ship to supply seawater used to clean the deck. The first pump 150 may suck seawater around the ship and inject the seawater to the deck through a pipe such as a pipe or a pipe. Accordingly, the first pump 150 can supply seawater for washing the deck. For example, the first pump 150 may be a spray water pump. The ship cooling apparatus 100 according to the first embodiment of the present invention can cool the vapor gas using seawater used for washing the deck. For this, the first pump 150 may be connected to the first cooling unit 120 through the first piping unit 160. In this case, the first pump 150 may supply the seawater supplied to the deck to the first cooling unit 120. Accordingly, the first cooling unit 120 can further cool the vapor gas exceeding the maximum generation amount by increasing the amount of seawater capable of cooling the vapor gas. The first pump 150 may be connected to the controller 140 through at least one of wire communication and wireless communication.

One side of the first piping unit 160 is connected to the first pump 150 and the other side is connected to the first cooling unit 120. Accordingly, the first piping unit 160 can transfer the seawater sucked by the first pump 150 to the first cooling unit 120. For example, the first pipe portion 160 may be a pipe or a pipe.

The first valve 170 is installed in the first piping part 160 and is connected to the first piping part 160 so that seawater supplied from the first pump 150 is supplied to the first cooling part 120. [ ). For example, the first valve 170 may allow the seawater sucked through the first pump 150 to be supplied to the first cooling unit 120 by opening the first pipe unit 160. In this case, seawater supplied to the deck may be shut off.

For example, the first valve 170 may block the seawater from being supplied to the first cooling unit 120 by closing the first piping unit 160. In this case, seawater can be used to clean the deck. The first piping unit 160 may be connected to the controller 140 through at least one of wire communication and wireless communication.

In the marine cooling system 100 according to the first embodiment of the present invention, when the cargo unloading mode is performed to unload the stored liquefied petroleum gas, the controller 140 discharges the liquefied petroleum gas from the storage unit 110 When the amount of the vapor gas exceeds the reference discharge amount, the first valve 170 is operated to open the first pipe unit 160 and the first cooling unit 120 and the first pump 150 are operated . In the unloading mode, more vapor gas is generated than in the operating mode due to heat input through the piping. That is, in the unloading mode, a larger amount of vapor gas is generated than the maximum generation amount generated in the operation mode. Accordingly, the marine cooling apparatus 100 according to the first embodiment of the present invention can be configured not only to the first cooling unit 120 and the second cooling unit 130, but also to the sea water supplied by the first pump 150 It is possible to cool the vapor gas.

4, the ship cooling apparatus 100 according to the second embodiment of the present invention further includes a first pump 150, a first pipe 160, a first valve 170, 2 pump 180, a second pipe 190, and a second valve 200. [

The first pump 150, the first pipe 160 and the first valve 170 are replaced with those described in the marine cooling system 100 according to the first embodiment of the present invention, 2 pump 180, the second pipe portion 190 and the second valve 200 will be described.

Referring to FIG. 4, the second pump 180 is installed on the ship to supply seawater used to generate an inert gas. The inert gas is stored together with the inert gas in the storage unit 110 to prevent the liquefied petroleum gas stored in the storage unit 110 from impacting the storage unit 110 due to shaking due to waves. The second pump 180 may supply seawater around the ship to generate the inert gas through the pipeline. For example, the second pump 180 may be an IGG CSW pump (Inert Generator Gas Cooling Sea Water Pump). The ship cooling apparatus 100 according to the second embodiment of the present invention can cool the vapor gas using seawater used to generate the inert gas. For this, the second pump 180 may be connected to the first cooling unit 120 through the second piping unit 190. In this case, the second pump 180 may supply seawater to the first cooling unit 120 to generate the inert gas. Accordingly, the first cooling unit 120 can further cool the vapor gas exceeding the maximum generation amount. For example, when the maximum generation amount is exceeded, it may be the unloading mode. The second pump 180 may be connected to the controller 140 in at least one of wired communication and wireless communication.

One side of the second piping part 190 is connected to the second pump 180 and the other side is connected to the first cooling part 120. Accordingly, the second piping unit 190 can transfer the seawater sucked by the second pump 180 to the first cooling unit 120. For example, the second pipe portion 190 may be a pipe such as a pipe or a pipe.

The second valve 200 is installed in the second piping unit 190 and the second piping unit 190 so that the seawater supplied by the second pump 180 is supplied to the first cooling unit 120 ). For example, the second valve 200 may allow the seawater sucked through the second pump 180 to be supplied to the first cooling unit 120 by opening the second pipe 190. In this case, the seawater supplied to generate the inert gas may be shut off.

For example, the second valve 200 may block the seawater from being supplied to the first cooling unit 120 by closing the second piping unit 190. In this case, seawater can be supplied to generate an inert gas. The second piping unit 190 may be connected to the controller 140 through at least one of wire communication and wireless communication.

In the ship cooling apparatus 100 according to the second embodiment of the present invention, when the amount of the vapor gas discharged from the storage unit 110 exceeds the reference discharge amount in the unloading mode, The first valve 170 or the second valve 200 is operated to operate the first cooling unit 120 and open one of the first pipe unit 160 and the second pipe unit 190 And operates the first pump 150 or the second pump 180 according to the opened piping. Accordingly, the marine cooling apparatus 100 according to the second embodiment of the present invention may include not only the first cooling unit 120 and the second cooling unit 130 but also the first pump 150 or the second pump 180 Can be used to cool the vapor gas. Also, in the marine cooling system 100 according to the second embodiment of the present invention, even if one of the first pump 150 and the second pump 180 is damaged or broken, the remaining pump can supply additional seawater .

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 or scope of the invention. Will be clear to those who have knowledge of.

100: ship cooling apparatus 110: storage unit
120: first cooling section 130: second cooling section
140: control unit 150: first pump
160: first piping section 170: first valve
180: Second pump 190: Second piping part
200: second valve

Claims (4)

A storage unit installed in the ship for storing liquefied petroleum gas;
A first cooling unit for liquefying the vapor gas generated from the liquefied petroleum gas stored in the storage unit with seawater;
A second cooling unit for cooling the vapor gas discharged from the storage unit using seawater and being spaced apart from the first cooling unit; And
And a control unit for stopping the operation of the first cooling unit when the amount of vapor gas discharged from the storage unit is equal to or less than a preset reference emission amount in a navigation mode for transporting the stored liquefied petroleum gas. The method according to claim 1,
Wherein the control unit operates the first cooling unit when the amount of the vapor gas discharged from the storage unit exceeds the predetermined reference discharge amount in the operation mode. The method according to claim 1,
A first pump for supplying seawater used to clean the deck;
A first piping section connecting the first pump and the first cooling section; And
And a first valve installed in the first piping portion and opening / closing the first piping portion so that seawater supplied by the first pump is supplied to the first cooling portion,
The control unit activates the first valve to open the first piping unit when the amount of the vapor gas discharged from the storage unit exceeds the reference discharge amount in the unloading mode for unloading the stored liquefied petroleum gas, The cooling section and the first pump are operated. The method of claim 3,
A second pump for supplying seawater used to generate an inert gas;
A second piping unit connecting the second pump and the first cooling unit; And
And a second valve installed in the second piping section and opening / closing the second piping section so that seawater supplied by the second pump is supplied to the first cooling section,
Wherein the control unit activates the first cooling unit when the amount of the vapor gas discharged from the storage unit exceeds the reference discharge amount in the unloading mode for unloading the stored liquefied petroleum gas, Wherein the first valve or the second valve is actuated to open one of the first and second valves so that the first pump or the second pump is operated according to the opened piping.
KR1020150056622A 2015-04-22 2015-04-22 A Cooling Apparatus for Ship KR20160126149A (en)

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KR1020150056622A KR20160126149A (en) 2015-04-22 2015-04-22 A Cooling Apparatus for Ship

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KR20160126149A true KR20160126149A (en) 2016-11-02

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