KR20120091542A - Container cooling apparatus - Google Patents

Container cooling apparatus Download PDF

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Publication number
KR20120091542A
KR20120091542A KR1020110011362A KR20110011362A KR20120091542A KR 20120091542 A KR20120091542 A KR 20120091542A KR 1020110011362 A KR1020110011362 A KR 1020110011362A KR 20110011362 A KR20110011362 A KR 20110011362A KR 20120091542 A KR20120091542 A KR 20120091542A
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KR
South Korea
Prior art keywords
container
refrigerant
unit
supply
cooling
Prior art date
Application number
KR1020110011362A
Other languages
Korean (ko)
Inventor
안만희
유현수
Original Assignee
삼성중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR1020110011362A priority Critical patent/KR20120091542A/en
Publication of KR20120091542A publication Critical patent/KR20120091542A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
    • B63J2/02—Ventilation; Air-conditioning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
    • B63J2/12—Heating; Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/74—Large containers having means for heating, cooling, aerating or other conditioning of contents
    • B65D88/745—Large containers having means for heating, cooling, aerating or other conditioning of contents blowing or injecting heating, cooling or other conditioning fluid inside the container
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit

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

Abstract

PURPOSE: A container cooling apparatus is provided to effectively cool a container unit while reducing the power consumption. CONSTITUTION: A container cooling apparatus comprises a circulating pipe(230), an outdoor unit(340), and an evaporator(320). The circulating pipe supplies refrigerant from a LNG vaporizing system. The outdoor unit is connected to receive the refrigerant through the circulating pipe and comprises a first cooling coil. The refrigerant is supplied to the first cooling coil and is heat-exchanged. The evaporator comprises a second cooling coil and is arranged inside the container unit.

Description

Container Cooling Unit {CONTAINER COOLING APPARATUS}

Embodiments of the present invention relate to a container cooling apparatus capable of cooling a container unit.

As is well known, various ships such as bulk cargo ships, container ships and passenger ships employ a fuel supply system that uses heavy oil such as bunker C oil, which is a liquid fuel, as a propellant fuel.

In the case of burning heavy oil used as fuel in such a conventional fuel supply system, there is a problem that environmental pollution due to various harmful substances contained in the exhaust gas is serious. Accordingly, regulations on the propulsion system using heavy oil as fuel oil are also being tightened, and the cost to satisfy such regulations is gradually increasing.

In addition, when oil prices rise due to depletion of fossil fuel or local instability, there are a number of operational problems, such as fuel costs of ships using heavy oil as fuel.

Therefore, as fuel oil of various ships, clean fuel such as LNG (or LPG, CNG, DME, etc.), which is a liquefied or gaseous gas fuel, is used instead of using heavy oil (or MDO) or using only a minimum amount. Ships are being developed.

On the other hand, the ship can be easily transported by mounting a container loaded with various cargoes in order to load and transport various cargoes. Such vessels may be equipped with cooling devices to maintain the proper temperature to maintain the temperature inside the container.

1 is a diagram illustrating a conventional cooling of a container provided in a vessel.

Referring to FIG. 1, after supplying electricity to cool the container unit 100, setting a temperature to be maintained, and performing setting of a ventilation device, the cool air is circulated to the surrounding space of the loading box 110. Can be.

Here, the container unit 100 may be provided with an air conditioner 120, a blowing fan 130, and the like that operate with the power of the ship. The air conditioner 120 is mounted inside the container unit 100, and uses the power of the vessel to cool the air inside the container unit 100, and the blower fan 130 supplies the cooled air to the container unit 100. ), For example, the lower portion of the loading box 110, the peripheral space of the loading box 110, and the like.

However, when cooling the container unit 100 in the vessel as described above, there is a problem that a lot of power is consumed to cool the container unit 100 by driving the cooling device.

Embodiments of the present invention to provide a container cooling apparatus that can reduce power consumption by cooling the container unit using a cold heat source generated during LNG vaporization.

According to an aspect of the present invention, an outdoor unit having a circulation pipe for supplying a refrigerant from an LNG vaporization system, and a first cooling coil connected to receive the refrigerant through the circulation pipe, the refrigerant being supplied and heat exchanged. And a second cooling coil connected to the first cooling coil to be cooled, and a container cooling device including an evaporator installed inside the container unit.

In addition, the container cooling device may further include a blower fan for circulating the internal air of the container unit cooled through the second cooling coil.

In addition, the outdoor unit may include a supply pipe connected to the circulation pipe to supply the refrigerant, and a discharge pipe connected to the circulation pipe to discharge the refrigerant.

In addition, the outdoor unit may further include a supply fan that operates to have the supply pressure when the refrigerant does not have a supply pressure that can be supplied and circulated.

The circulation pipe may further include a manifold coupled to the circulation pipe to distribute the refrigerant to each of the plurality of container units in the ship, and a connector provided at an end of each of the manifolds.

The apparatus may further include a heat exchanger having a connection pipe connected to the extra connector of the manifold of the circulation pipe and a cooling coil connected to the connection pipe to receive and exchange heat with the refrigerant.

In addition, the circulation pipe or the connection pipe may be further provided with a supply shut-off valve which is provided for supplying or blocking the refrigerant.

In the embodiment of the present invention, after supplying the vaporized LNG to the outdoor unit of the container unit through the circulation pipe, and heat exchanged the vaporized LNG and the first cooling coil in the outdoor unit, the second cooling is connected to the first cooling coil and cooled By circulating the internal air of the container unit cooled through the coil, it is possible to effectively cool the container unit while reducing power consumption.

Further, in the embodiment of the present invention, after supplying the vaporized LNG to the heat exchanger of the container unit through the circulation pipe, and the heat exchanged vaporized LNG and the cooling coil in the heat exchanger, the interior of the container unit cooled through this cooling coil By circulating the air, it is possible to effectively cool the container unit while reducing power consumption.

1 is a view illustrating cooling a container conventionally provided in a ship,
2 is a view illustrating a container cooling apparatus for cooling a container unit using LNG according to an embodiment of the present invention,
3 is a view illustrating a container cooling apparatus for cooling a container unit using LNG according to another embodiment of the present invention,
4 is a view illustrating a vessel equipped with a container cooling device for cooling a container unit using LNG according to an embodiment of the present invention.

In the embodiment of the present invention, the LNG vaporized system through the LNG vaporization system to supply and circulate, the vaporized LNG heat exchanged with the cooling coil of the outdoor unit to cool the internal air of the container unit or vaporized LNG in the heat exchanger It is to heat exchange with the cooling coil to cool the internal air of the container unit, through this technical means can solve the problems in the prior art.

Advantages and features and methods for achieving them according to embodiments of the present invention will become apparent with reference to the embodiments described below in detail with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

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

2 is a view illustrating a container cooling apparatus for cooling a container unit using LNG according to an embodiment of the present invention.

Referring to FIG. 2, the container cooling apparatus may be connected to an LNG vaporization system 210 in which LNG from the LNG storage tank 200 is supplied through a supply pipe 220 to use LNG as a fuel.

Here, the LNG vaporization system 210 may vaporize the LNG in the LNG storage tank 200 to NG, and supply the NG to the NG use destination. Here, the heat source for vaporizing LNG can use nitrogen gas etc., for example.

At this time, the nitrogen gas cooled through heat exchange with LNG may be delivered to the outdoor unit 340 provided in the container unit 300 through the circulation pipe 230.

The circulation pipe 230 may include a supply shutoff valve 240 that may supply or block cooled nitrogen gas.

In addition, the circulation pipe 230 includes manifolds 221 and 222 coupled to the circulation pipe 230 to distribute nitrogen gas to each of the plurality of container units 300 in the ship, and each manifold 221 and 222. Connectors 223 and 224 provided at the end of the may be provided.

Here, the control valve may be installed in each line of the manifolds (221, 222).

The connectors 223 and 224 may be configured as a cryogenic connector or a coupler to open the flow path at the same time as the fastening and to close the flow path at the time of separation.

The outdoor unit 340 for each container unit 300 may also be mounted to the connectors 223 and 224 of the manifolds 221 and 222, respectively, so that the connectors 345 and 346 for receiving nitrogen gas may be provided. .

Other container units not shown may be connected to the circulation pipe 230 using other connectors of the manifolds 221 and 222 to receive nitrogen gas.

The outdoor unit 340 provided in the container unit 300 includes a supply fan 341 that operates to supply a refrigerant such as a cold heat source, that is, cooled nitrogen gas, and a first cooling coil that is cooled through heat exchange with the refrigerant ( 342, a supply pipe 343 connected to one connector 345 to supply the refrigerant, and a discharge pipe 344 connected to the other connector 346 to discharge the refrigerant.

Here, the supply fan 341 performs only natural rotation when the refrigerant is supplied at a constant supply pressure (a pressure capable of circulating cooled nitrogen gas), and when the refrigerant is not a constant supply pressure, the intake air pressure is insufficient. Can be driven to provide.

In addition, the supply pipe 343 and the discharge pipe 344 may be further provided with a control valve that can supply or block the refrigerant from the circulation pipe 230.

Here, the refrigerant (that is, nitrogen gas) is in contact with the first cooling coil 342 is delivered to the LNG vaporization system 210 through the circulation pipe 230 again, wherein the first cooling coil 342 is LNG vaporization It may be cooled through heat exchange with nitrogen gas cooled via system 210. The first cooling coil 342 may be connected to the second cooling coil 321 of the evaporator 320 provided in the container unit 300, so that the second cooling coil 321 is the first cooling coil Like 342, it can be cooled.

The evaporator 320 provided in the container unit 300 may cool the internal air by using the cooled second cooling coil 321, and the cooled internal air may be the first blowing fan 330 and the second. The supply fan may be circulated to the internal space of the container unit 300 through the blowing fan 350.

That is, the cooled internal air may be supplied to the lower portion of the loading box 310, the peripheral space, and the like, and then transferred to the evaporator 320 through the first blowing fan 330 and the second blowing fan 350. Here, only one of the first blowing fan 330 and the second blowing fan 350 may be installed as necessary.

3 is a view illustrating a container cooling apparatus for cooling a container unit using LNG according to another embodiment of the present invention. In the description of the present embodiment, the overlapping configuration is the same as the above embodiment, and thus description thereof may be omitted.

Referring to FIG. 3, the container cooling device may be connected to an LNG vaporization system 210 in which LNG from the LNG storage tank 200 is supplied through a supply pipe 220 to use LNG as a fuel.

At this time, the spare connectors 225 and 226 of the manifolds 221 and 222 of the circulation pipe 230 may be provided with connectors 364 and 365 of the connection tubes 362 and 363 for the heat exchanger 360. May be combined.

The heat exchanger 360 may include a third cooling coil 361 connected to the connection pipes 362 and 363 to receive and exchange heat with nitrogen gas, which is a refrigerant, and may be installed in the container unit 300. .

Therefore, the nitrogen gas cooled through the heat exchange with the LNG of the LNG vaporization system 210 is circulated piping 230, manifolds (221, 222), connectors (225, 226, 364, 365) and connecting pipes 362, 363 ) May be transferred to the heat exchanger 360 further provided inside the container unit 300, or may be recovered toward the circulation pipe 230 after the heat exchange is completed. The connection pipes 362 and 363 connected to the circulation pipe 230 may be provided with supply shutoff valves 240a and 240b for supplying or blocking cooled nitrogen gas, respectively.

The evaporator 320, the first blowing fan 330, and the second blowing fan 350 may be provided in the container unit 300.

Meanwhile, the refrigerant (that is, cooled nitrogen gas) transferred from the LNG vaporization system 210 through the circulation pipe 230 and the connection pipes 362 and 363 may exchange the heat exchanger 360 to cool the container unit 300. And the inside of the container unit 300 through one of the cooling by the evaporator 320 and the outdoor unit 340, or the cooling by the heat exchanger 360, or both simultaneously. You can.

In the case of cooling by the heat exchanger 360, the nitrogen gas cooled from the LNG vaporization system 210 may exchange heat while passing through the third cooling coil 361 provided in the heat exchanger 360. The third cooling coil 361 cooled by the heat exchange cools the internal air, and the cooled internal air is internal space of the container unit 300 through the first blowing fan 330 and the second blowing fan 350. For example, the supply may be circulated to the lower portion of the loading box 310, the surrounding space, and the like.

Therefore, the refrigerant that is heat exchanged with LNG through the LNG vaporization system, ie, nitrogen gas, is circulated to the outdoor unit or the heat exchanger of the container unit to exchange heat with the cooling coil, and the internal air of the container unit is cooled and cooled through the cooling coil cooled through such heat exchange. Can be circulated.

4 is a view illustrating a vessel equipped with a container cooling device for cooling a container unit using LNG according to an embodiment of the present invention.

Referring to FIG. 4, the vessel 400 may include an LNG storage tank 200, and may include an LNG vaporization system 210 for vaporizing LNG to use LNG as a fuel. The LNG vaporization system 210 may be installed at a position for minimizing the distance between the LNG storage tank 200 and each container unit 411, 412, 413, 414, 415.

Here, the LNG vaporization system 210 is a container cooling device (A, B, C, D, provided in each container unit 411, 412, 413, 414, 415 through the circulation pipe 230 or connecting pipe, E), and may be used to circulate a refrigerant (ie, nitrogen gas) used as a heat source for vaporizing LNG through the circulation pipe 230 or the connection pipe. At this time, the container cooling device (A, B, C, D, E) is configured to include an outdoor unit 340 and the evaporator 320 as shown in FIG. 2 or the heat exchanger 360 as shown in FIG. ) Or a configuration including an outdoor unit 340, an evaporator 320, and a heat exchanger 360.

As described above as a specific embodiment of the container cooling apparatus according to the embodiment of the present invention, this is only an example, the present invention is not limited to this, and should be construed as having the broadest range in accordance with the basic idea disclosed herein. do. Those skilled in the art can easily change the material, size, etc. of each component according to the application field, and can be combined / substituted the disclosed embodiments to implement a pattern of a timeless shape, but this also does not depart from the scope of the present invention will be. It will be apparent to those skilled in the art that various changes and modifications may be readily made without departing from the spirit and scope of the invention as defined by the appended claims.

200: LNG storage tank 210: LNG vaporization system
220: supply piping 230: circulation piping
240: supply shutoff valve 300: container unit
310: loading box 320: evaporator
330: first blowing fan 340: outdoor unit
350: second blowing fan 360: heat exchanger

Claims (7)

Circulation pipes for supplying refrigerant from the LNG vaporization system,
An outdoor unit connected to receive the refrigerant through the circulation pipe, the outdoor unit having a first cooling coil to supply and heat exchange the refrigerant;
An evaporator having a second cooling coil connected to the first cooling coil to be cooled and installed inside the container unit.
Container cooling unit.
The method of claim 1,
Further comprising a blowing fan for circulating the internal air of the container unit cooled through the second cooling coil
Container cooling unit.
The method of claim 1,
The outdoor unit,
A supply pipe connected to the circulation pipe to supply the refrigerant;
A discharge pipe connected to the circulation pipe to discharge the refrigerant;
Container cooling unit.
The method of claim 3, wherein
The outdoor unit,
And a supply fan operable to have the supply pressure when the refrigerant does not have a supply pressure that can be supplied and circulated.
Container cooling unit.
The method of claim 1,
The circulation pipe,
A manifold coupled to the circulation pipe for distributing the refrigerant to each of a plurality of container units in the ship;
Further comprising a connector provided at each end of the manifold
Container cooling unit.
The method of claim 5, wherein
A connecting pipe connected to the spare connector of the manifold of the circulation pipe;
A cooling coil connected to the connection pipe to receive and exchange heat with the refrigerant, and further comprising a heat exchanger installed inside the container unit.
Container cooling unit.
The method according to claim 6,
Each of the circulation pipe or the connection pipe is further provided with a supply shutoff valve provided to supply or block the refrigerant.
Container cooling unit.
KR1020110011362A 2011-02-09 2011-02-09 Container cooling apparatus KR20120091542A (en)

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Application Number Priority Date Filing Date Title
KR1020110011362A KR20120091542A (en) 2011-02-09 2011-02-09 Container cooling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110011362A KR20120091542A (en) 2011-02-09 2011-02-09 Container cooling apparatus

Publications (1)

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KR20120091542A true KR20120091542A (en) 2012-08-20

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103662417A (en) * 2013-11-30 2014-03-26 南通四方冷链装备股份有限公司 Cold chain heat-insulation box with heat exchanging plates
WO2015030277A1 (en) * 2013-08-30 2015-03-05 한국가스공사 Cooling jacket and cooling system using same
KR102122023B1 (en) 2019-02-22 2020-06-12 부산대학교 산학협력단 Fuel Supply System of Liquefied Hydrogen Fuel Cell Propulsion Ship And Method for Operating the Same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015030277A1 (en) * 2013-08-30 2015-03-05 한국가스공사 Cooling jacket and cooling system using same
JP2016535231A (en) * 2013-08-30 2016-11-10 コリア ガス コーポレイション Cooling jacket and cooling system using the same
CN103662417A (en) * 2013-11-30 2014-03-26 南通四方冷链装备股份有限公司 Cold chain heat-insulation box with heat exchanging plates
KR102122023B1 (en) 2019-02-22 2020-06-12 부산대학교 산학협력단 Fuel Supply System of Liquefied Hydrogen Fuel Cell Propulsion Ship And Method for Operating the Same

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