KR20170049963A - Cooling system - Google Patents

Cooling system Download PDF

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Publication number
KR20170049963A
KR20170049963A KR1020150150922A KR20150150922A KR20170049963A KR 20170049963 A KR20170049963 A KR 20170049963A KR 1020150150922 A KR1020150150922 A KR 1020150150922A KR 20150150922 A KR20150150922 A KR 20150150922A KR 20170049963 A KR20170049963 A KR 20170049963A
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KR
South Korea
Prior art keywords
line
fresh water
branch
cooling
circulation
Prior art date
Application number
KR1020150150922A
Other languages
Korean (ko)
Inventor
박은배
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.)
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Application filed by 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR1020150150922A priority Critical patent/KR20170049963A/en
Publication of KR20170049963A publication Critical patent/KR20170049963A/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
    • B63J2/12—Heating; Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
    • B63H21/383—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like for handling cooling-water

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

The present invention relates to a cooling system. The cooling system according to the present invention comprises: a seawater line through which seawater flows; a heat exchanger located on a path of the seawater line; a blue water line provided to circulate blue water through the heat exchanger, on which at least one set of a branch supply line and a branch collection line is branched, wherein the branch supply unit is configured to supply a component to be cooled with blue water discharged from the heat exchanger, and blue water that has circulated in the component to be cooled flows through the branch collection line; a pump located on the blue water line; and a blue water circulating and cooling unit placed over both the branch supply line and the branch collection line, and configured to allow blue water that has circulated in the component to be cooled, to selectively, flow from the branch collection line into the heat exchanger, or flow from the branch collection line into the branch supply line to be reintroduced into the component to be cooled.

Description

Cooling system

The present invention relates to a cooling system.

An offshore structure such as a ship is provided with a cooling system. The cooling system cools the heat generating device during operations such as the main engine, the generator engine, etc., so that such device is operated while being protected from damage.

The cooling system is configured such that fresh water is circulated while being heat exchanged with the apparatus, and fresh water is cooled by heat exchange with seawater. If fresh water can not circulate properly in such a cooling system, the operation of the offshore structure must be stopped because the heating device can not be cooled.

The present invention is intended to provide a cooling system in which fresh water can be efficiently cooled.

According to an aspect of the present invention, A heat exchanger located on the path of the sea water line; A branch supply line provided so that fresh water is circulated through the heat exchanger and fresh water discharged from the heat exchanger is supplied to the object device to be cooled and a branch recovery line through which the sea water flowing through the object to be cooled flows, One or more branched fresh water lines; A pump located on the fresh water line; And a control unit located over the branch supply line and the branch recovery line to cause fresh water flowing through the cooling target apparatus to flow from the branch recovery line to the heat exchanger or alternatively to flow from the branch recovery line via the branch supply line to the cooling A cooling system may be provided that includes a fresh water recirculation cooling unit that allows it to flow back into the target device.

The fresh water circulation cooling unit may further include: a circulation line connecting the branch supply line and the branch recovery line; A cooler located in the circulation line; And a circulation pump located in the circulation line.

The fresh water circulation cooling unit may further include a fan positioned adjacent to the cooler to form a flow of air around the cooler.

The circulation line may be connected to the branch supply line through a first three-way valve and to the branch recovery line through a second three-way valve.

The cooling system may further include: a sensor located on the fresh water line for sensing the flow of fresh water; And a controller that causes the fresh water passing through the cooling target device to flow back to the cooling target device via the branch recovery line and the branch supply line when the fresh water is detected as not flowing through the sensor .

The cooling system further includes a controller for causing fresh water passing through the cooling target device to flow back to the cooling target device via the branch recovery line and the branch supply line when the pump is detected as not operating can do.

The cooling system further includes a controller for causing fresh water passing through the cooling target device to flow back to the cooling target device via the branch recovery line and the branch supply line when it is detected that an abnormality has occurred in the main power source can do.

According to an embodiment of the present invention, a cooling system capable of efficiently cooling fresh water can be provided.

1 is a diagram of a cooling system according to an embodiment of the present invention.
2 is a view showing a fresh water circulation unit.
3 is a block diagram showing the control relationship of the cooling system.
4 is a diagram showing the flow direction of clear water in the fresh water circulating unit when the normal operation mode is selected.
5 is a diagram showing the flow direction of clear water in the fresh water circulating unit when the mode is the emergency operation mode.
6 is a block diagram showing the control relationship of the cooling system according to another embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the following embodiments. This embodiment is provided to more fully describe the present invention to those skilled in the art. Thus, the shape of the elements in the figures has been exaggerated to emphasize a clearer description.

1 is a diagram of a cooling system according to an embodiment of the present invention.

1, the cooling system 10 includes a seawater line 100, a fresh water line 300, a device 400 to be cooled, and a fresh water circulation cooling unit 500.

The cooling system 10 may be provided to an offshore structure. Offshore structures may be ships. Ships can be merchant ships, passenger ships. The offshore structures can also be used for oil drilling rigs such as Floating Production Storage and Offloading (FPSO), DRILLSHIP, JACK-up RIG or semi-submersible. Can be. The offshore structure may be provided with equipment for drilling and refining crude oil, or for storing or unloading oil. The cooling system 10 may perform the function of cooling the apparatus provided in the offshore structure.

The seawater line (100) supplies seawater to the cooling system (10). The seawater line 100 includes a seawater inflow line 100a for guiding the seawater introduced from the outside to the heat exchanger 200 and a seawater discharge line 100b for guiding the seawater discharged from the heat exchanger 200 to the outside .

The fresh water line 300 provides a path for fresh water to circulate within the ocean structure. The fresh water line 300 is provided to pass through the heat exchanger 200 and is cooled in the course of heat exchange with the sea water of the sea water line 100. The fresh water line 300 includes a fresh water supply line 300a positioned on a path through which fresh water is discharged from the heat exchanger 200 and a fresh water supply line 300a positioned on a path through which fresh water flows in the heat exchanger 200 direction. And a fresh water recovery line 300b.

The fresh water line 300 may be provided with a pump 310 that provides the pressure at which clean water flows. For example, the pump 310 may be located on fresh water supply line 300a. At this time, one or more pumps 310 may be provided. When two or more pumps 310 are provided, the pumps 310 may be arranged in parallel or in series on the fresh water supply line 300a. In addition, the pump 310 may be located in the fresh water recovery line 300b, or may be located in the fresh water supply line 300a and the fresh water recovery line 300b, respectively.

One or more cooling object devices 400 are provided in the offshore structure to assist in the functioning of the offshore structure. For example, the cooling object device 400 may be a main engine, a generator, a package air conditioner (PAC), a starting air compressor, or various electrical devices. The cooling object device 400 is cooled in the process of generating heat during operation and performing heat exchange with the circulating fresh water. The fresh water is branched from the fresh water supply line 300a and supplied to the cooling target device 400 through the branched supply line 350a connected to the respective cooling target devices 400a, 400b, 400c, 400d, and 400e, The fresh water flows in the direction of the heat exchanger 200 through the branch recovery line 350b connecting the cooling object device 400 and the fresh water recovery line 300b.

Fresh water recirculation cooling unit 500 may be located across branch feed line 350a and branch recovery line 350b. When a plurality of cooling target devices 400 are provided, the fresh water circulation cooling unit 500 is placed over the branch supply line 350a and the branch recovery line 350b connected to the respective cooling target devices 400, A branch supply line 350a connected to a part of the cooling target device 400 and a branch recovery line 350b. Fresh water can be circulated between the cooling object device 400 and the heat exchanger 200 or alternatively circulated between the cooling object device 400 and the fresh water circulating cooling unit 500.

2 is a view showing a fresh water circulation unit.

Referring to FIG. 2, the fresh water circulation cooling unit 500 includes a circulation line 530 and a cooler 540.

The circulation line 530 is connected to the first three-way valve 510 located on the branch supply line 350a and to the second three-way valve 520 located on the branch recovery line 350b, respectively. The circulation line 530 provides a path through which fresh water is circulated between the fresh water circulation cooling unit 500 and the cooling object apparatus 400.

The cooler 540 is located on the circulation line 530. Cooler 540 causes fresh water to be heat exchanged with the air to cool. A circulation pump 550 may be provided in front of the cooler 540 or behind the cooler 540 based on the flow direction of fresh water. The circulation pump 550 provides a pressure at which fresh water can flow. In addition, a fan 560 may be provided adjacent to the cooler 540. The fan 560 may generate a flow of air around the cooler 540 to facilitate heat exchange with the cooler 540.

Also, the fresh water line 300 may be provided with a sensor 570. For example, the sensor 570 may be provided in a branch supply line 350a where a fresh water circulation cooling unit 500 is provided. At this time, the sensor 570 may be positioned in front of the first three-way valve 510 with respect to the flowing direction of fresh water. In addition, the sensor 570 may be provided in the branch recovery line 350b provided with the fresh water circulation cooling unit 500. [ At this time, the sensor 570 may be positioned behind the second three-way valve 520 with respect to the flow direction of fresh water. In addition, the sensor 570 may be located in the fresh water supply line 300a or the fresh water recovery line 300b. The sensor 570 senses whether fresh water flows in the fresh water line 300. For example, the sensor 570 may be a flow switch, a flow meter, or the like.

FIG. 3 is a block diagram showing the control relationship of the cooling system, and FIG. 4 is a diagram showing the flow direction of fresh water in the fresh water circulation unit when the normal operation mode is selected.

3 and 4, the controller 600 controls the operation of the pump 310 to cause fresh water to circulate along the fresh water line 300 while being heat exchanged in the heat exchanger 200. The auxiliary controller 600 controls the fresh water circulation cooling unit 500 so that fresh water is circulated along the cooling target device 400 and the fresh water line 300.

The auxiliary controller (600) controls the operation of the fresh water circulation cooling unit (500) based on information inputted from the outside. Specifically, when it is determined that the pump 310 is operating normally according to the data transmitted from the controller 600, when it is determined that fresh water is normally flowing through the sensor 570, and when it is provided to the offshore structure, The auxiliary controller 600 controls the fresh water circulation cooling unit 500 in the normal operation mode when it is determined that the main power source 610 for supplying power to each device of the apparatus 600 is normally operating.

In the normal operation mode, the auxiliary controller 600 controls the three-way valves 510 and 520 so that fresh water flows along the branch supply line 350a and the branch recovery line 350b. The auxiliary controller 600 can prevent the circulation pump 550 and the fan 560 from operating.

5 is a diagram showing the flow direction of clear water in the fresh water circulating unit when the mode is the emergency operation mode.

Referring to FIGS. 3 and 5, the auxiliary controller 600 can operate the fresh water circulation cooling unit 500 in the emergency operation mode based on externally input information.

Specifically, when it is detected through the data input through the controller 600 that the pump 310 is not normally operated, the auxiliary controller 600 can operate the fresh water circulation cooling unit 500 in the emergency operation mode. Also, if fresh water is detected as not flowing normally through the fresh water line 300 through the sensor 570, the auxiliary controller 600 can operate the fresh water circulation cooling unit 500 in the emergency operation mode. In the case where the fresh water does not flow normally along the fresh water line 300, the pump 310 may operate normally but the fresh water line 300 may be broken or clogged when the pump 310 does not operate normally . In addition, when an abnormality occurs in the main power source 610 and there is an abnormality in power supply, the auxiliary controller 600 can operate the fresh water circulation cooling unit 500 in the emergency operation mode.

In the emergency operation mode, the auxiliary controller 600 controls the first three-way valve 510 and the second three-way valve 520 so that fresh water flows along the circulation line 530, and controls the power supplied from the auxiliary power source 620 The circulation pump 550 is operated. The fresh water flowing along the branch recovery line 350b in the cooling target device 400 is cooled in the cooler 540 of the circulation line 530 and then supplied to the cooling target device 400 through the branch supply line 350a And then flows in again. The auxiliary controller 600 can operate the fan 560 through the power supplied from the auxiliary power source 620 to improve the heat exchange efficiency in the cooler 540.

According to an embodiment of the present invention, even if the fresh water can not be cooled through the heat exchanger 200 due to an unexpected cause, the fresh water is cooled through the fresh water circulation cooling unit 500, Lt; / RTI > Therefore, by providing the fresh water circulating cooling unit 500 adjacent to the cooling target apparatus 400 having a high priority in the operation of the offshore structure, even when the fresh water can not be cooled through the heat exchanger 200, .

6 is a block diagram showing the control relationship of the cooling system according to another embodiment.

Referring to Fig. 6, the sub-controller 600 of Fig. 3 is omitted, and the fresh water circulation cooling unit 500 can be controlled by the controller 600b. That is, the controller 600b controls the three-way valves 510b, 510b based on the data on the operation of the pump 310b, the data on the flow of fresh water sensed by the sensor 570b, and the data on the operating state of the main power source 610b, 520b. The controller 600b may operate the circulation pump 550b and the fan 560b using the power provided by the auxiliary power source 620b when the controller 600b is in the emergency operation mode. The method of switching the fresh water circulation cooling unit 500 to the normal operation mode or the emergency operation mode by using the data transmitted from the pump 310b, the sensor 570b, and the main power source 610b is the same as or similar to that of FIGS. 3 to 5 Repeated explanations are omitted.

The foregoing detailed description is illustrative of the present invention. In addition, the foregoing is intended to illustrate and explain the preferred embodiments of the present invention, and the present invention may be used in various other combinations, modifications, and environments. That is, it is possible to make changes or modifications within the scope of the concept of the invention disclosed in this specification, within the scope of the disclosure, and / or within the skill and knowledge of the art. The embodiments described herein are intended to illustrate the best mode for implementing the technical idea of the present invention and various modifications required for specific applications and uses of the present invention are also possible. Accordingly, the detailed description of the invention is not intended to limit the invention to the disclosed embodiments. It is also to be understood that the appended claims are intended to cover such other embodiments.

100: sea water line 200: heat exchanger
300: fresh water line 400: cooling target device
500: fresh water circulation cooling unit 510: first three-way valve
520: second three-way valve 530: circulation line
540: cooler 550: circulation pump

Claims (7)

A sea water line in which seawater flows;
A heat exchanger located on the path of the sea water line;
A branch supply line provided so that fresh water is circulated through the heat exchanger and fresh water discharged from the heat exchanger is supplied to the object device to be cooled and a branch recovery line through which the sea water flowing through the object to be cooled flows, One or more branched fresh water lines;
A pump located on the fresh water line; And
Wherein the cooling water is supplied to the branching line and the branch recovery line to allow fresh water passing through the cooling target device to flow from the branch recovery line to the heat exchanger or alternatively from the branch recovery line via the branch supply line to the cooling object And a fresh water circulation cooling unit for allowing the fresh water to flow back into the apparatus. The method according to claim 1,
The fresh water circulation cooling unit includes:
A circulation line connecting the branch supply line and the branch recovery line;
A cooler located in the circulation line; And
And a circulation pump located in the circulation line. 3. The method of claim 2,
The fresh water circulation cooling unit includes:
And a fan positioned adjacent the cooler to form a flow of air around the cooler. 3. The method of claim 2,
Wherein the circulation line is connected to the branch supply line via a first three-way valve and is connected to the branch recovery line via a second three-way valve. The method according to claim 1,
The cooling system comprises:
A sensor positioned on the fresh water line for sensing flow of fresh water; And
Further comprising a controller for causing the fresh water passing through the cooling target device to flow back to the cooling target device via the branch recovery line and the branch supply line when the fresh water is detected as not flowing through the sensor. The method according to claim 1,
The cooling system comprises:
Further comprising a controller for causing fresh water passing through the cooling target device to flow back to the cooling target device via the branch recovery line and the branch supply line if the pump is detected as not operating. The method according to claim 1,
The cooling system comprises:
Further comprising a controller for causing fresh water passing through the cooling target device to flow back to the cooling target device via the branch recovery line and the branch supply line when it is detected that an abnormality has occurred in the main power source.
KR1020150150922A 2015-10-29 2015-10-29 Cooling system KR20170049963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150150922A KR20170049963A (en) 2015-10-29 2015-10-29 Cooling system

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Application Number Priority Date Filing Date Title
KR1020150150922A KR20170049963A (en) 2015-10-29 2015-10-29 Cooling system

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KR20170049963A true KR20170049963A (en) 2017-05-11

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190047440A (en) * 2017-10-27 2019-05-08 삼성중공업 주식회사 Bubble Injection Device of Ship Having Cooling System
CN109969372A (en) * 2019-04-11 2019-07-05 苏州飞驰环保科技股份有限公司 Inner-outer circulation switching is with the water-cooling system of the water surface cleaning ship suitable for different waters
KR20200081991A (en) * 2018-12-28 2020-07-08 대우조선해양 주식회사 Air bubble chamber and air bubble lubricant system of ship having air bubble chamber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190047440A (en) * 2017-10-27 2019-05-08 삼성중공업 주식회사 Bubble Injection Device of Ship Having Cooling System
KR20200081991A (en) * 2018-12-28 2020-07-08 대우조선해양 주식회사 Air bubble chamber and air bubble lubricant system of ship having air bubble chamber
CN109969372A (en) * 2019-04-11 2019-07-05 苏州飞驰环保科技股份有限公司 Inner-outer circulation switching is with the water-cooling system of the water surface cleaning ship suitable for different waters

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