KR101756312B1 - Seawater supplying system - Google Patents

Seawater supplying system Download PDF

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Publication number
KR101756312B1
KR101756312B1 KR1020150130373A KR20150130373A KR101756312B1 KR 101756312 B1 KR101756312 B1 KR 101756312B1 KR 1020150130373 A KR1020150130373 A KR 1020150130373A KR 20150130373 A KR20150130373 A KR 20150130373A KR 101756312 B1 KR101756312 B1 KR 101756312B1
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KR
South Korea
Prior art keywords
seawater
line
supply line
sub
fresh water
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KR1020150130373A
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Korean (ko)
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KR20170032701A (en
Inventor
조헌
강민우
박영수
윤상규
조민준
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삼성중공업(주)
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Priority to KR1020150130373A priority Critical patent/KR101756312B1/en
Publication of KR20170032701A publication Critical patent/KR20170032701A/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 
    • B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
    • B63B43/06—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using ballast tanks
    • 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

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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 seawater supply system. According to an embodiment of the present invention, a seawater supply system includes: a seawater supply line to which a pump is provided at a front end portion and into which seawater flows; A cooling device connected to the seawater supply line in a heat exchangeable manner; A sub supply line connected to a rear end of the seawater supply line to supply seawater to the seawater utilization device and having a pressure gauge; A drain line connected to a rear end of the sea water supply line to discharge seawater; And a drain valve located in the drain line, the drain valve being opened and closed according to the pressure sensed by the pressure gauge.

Figure R1020150130373

Description

SEAWATER SUPPLY SYSTEM

The present invention relates to a seawater supply system.

Offshore structures such as vessels include engine, generator, motor, air consystem, air compressor, and other heat generating heat generating equipment. Such heating devices need to be cooled during operation. Therefore, offshore structures require equipment to cool the heating equipment using seawater.

The present invention is intended to provide an efficient seawater supply system.

According to an aspect of the present invention, there is provided a water supply system comprising: a seawater supply line to which a pump is provided at a front end portion and into which seawater flows; A cooling device connected to the seawater supply line in a heat exchangeable manner; A sub supply line connected to a rear end of the seawater supply line to supply seawater to the seawater utilization device and having a pressure gauge; A drain line connected to a rear end of the sea water supply line to discharge seawater; And a drain valve located in the drain line and controlled to be opened or closed according to the pressure sensed by the pressure gauge.

In addition, the seawater utilization apparatus may include a fresh water production apparatus and a ballast tank, and the sub supply line may include a first sub supply line connected to the fresh water production apparatus and a second sub supply line connected to the ballast tank have.

In addition, the pressure gauge may be located in the second sub-feed line.

The apparatus may further include a seawater circulation line connecting the ballast tank and the seawater supply line so that the seawater of the ballast tank may flow toward the seawater supply line.

The cooling device may further include: a heating device; A fresh water circulation line connected to the exothermic facility and circulating fresh water; And a heat exchanger connected to the fresh water circulation line and the seawater supply line.

According to an embodiment of the present invention, an efficient seawater supply system is provided.

1 is a view showing a seawater supply system according to an embodiment of the present invention.
2 is a view showing a seawater supply system in which a drain valve is opened.
3 is a view showing a seawater supply system in which a drain valve is closed;
4 is a view showing a state in which seawater is supplied to the seawater utilization device and discharged together with the drainage line.

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 view showing a seawater supply system according to an embodiment of the present invention.

A seawater supply system (1) is provided in an offshore structure to supply seawater for use in an offshore structure. Offshore structures may include passenger ships, cargo ships, floating production storage and offloading units (FPSOs), floating storage and regasification units (FSRUs), and the like.

Referring to Fig. 1, the seawater supply system 1 includes a seawater supply line 10, a facility cooling apparatus 20, and a seawater utilization apparatus 40.

The seawater flows into the seawater supply system (1) through the seawater supply line (10). A seawater inlet (11) may be provided at the front end of the seawater supply line (10). The seawater inlet 11 may be provided outside the offshore structure. A pump 12 is provided at the front end of the sea water supply line 10. The pump 12 provides the pressure at which seawater flows from the front end to the rear end of the seawater supply line 10.

The equipment cooling apparatus 20 is provided so as to be exchangeable with the sea water supply line 10. The facility cooling apparatus 20 includes a heat generation facility 21, a fresh water circulation line 22, and a heat exchanger 23.

The exothermic equipment 21 is a device used for the operation of an offshore structure, and is a device that generates heat during its operation and needs cooling. For example, the exothermic equipment 21 may be an engine, a generator, an electric motor, an air conditioning system, an air compressor, or an electronic device provided in an offshore structure.

The fresh water circulation line 22 is connected to the exothermic facility 21 to provide a path through which fresh water is circulated via the exothermic facility 21. Therefore, the heat generating equipment 21 can be cooled by transferring heat to fresh water of the fresh water circulating line 22.

The heat exchanger 23 is provided to be connected to the fresh water circulation line 22 and the sea water supply line 10. Therefore, the fresh water circulating in the fresh water circulating line 22 is heat-exchanged with the seawater flowing in the seawater supply line 10 in the heat exchanger 23 to be cooled. If necessary, a plurality of heat exchangers 23 may be provided in parallel. Then, the fresh water circulation line 22 can be branched to the fresh water branch line 22a in a section connected to the heat exchanger 23. The seawater supply line 10 may be branched to the seawater basin line 10a in a section where the heat exchanger 23 is connected.

The seawater supply line 10 may be provided with a filter 13. The filter 13 can filter foreign matter, marine life, and the like contained in seawater. The filter 13 may be located at the front end of the section that is connected to the facility cooling apparatus 20.

A sub supply line 30 and a drain line 50 are connected to the rear end of the seawater supply line 10.

The seawater utilization device 40 contributes to the operation of the offshore structure by using seawater supplied through the seawater supply line 10. The seawater utilization device 40 is connected to the rear end of the seawater supply line 10 via the sub supply line 30. The sub supply line 30 may be provided with valves 35a, 35b and 35c for opening and closing the sub supply line 30. [ The seawater utilization device 40 may include a fresh water production device 41, a ballast tank 42, and a seawater storage tank 43. The fresh water production device 41, the ballast tank 42 and the seawater storage tank 43 are connected to the first sub supply line 31, the second sub supply line 32 and the third sub supply line 33, respectively, Can be connected to the rear end of the line (10). The fresh water production unit 41 can produce fresh water to be used in offshore structures using seawater. The ballast tank 42 uses seawater contained therein to keep the offshore structure in balance. The seawater storage tank 43 may temporarily store the seawater, and then provide seawater if necessary in the offshore structure. For example, the seawater stored in the seawater storage tank 43 may be used for cleaning the ship, or may be provided as a fire-fighting water against fire.

The seawater utilization device 40 is connected to the seawater supply line 10 through a seawater circulation line 60. The seawater circulation line 60 can supply the seawater of the seawater utilization device 40 to the seawater supply line 10. The seawater circulation line (60) may be provided with a circulation pump (61) which provides the pressure at which the seawater flows. The seawater circulation line 60 may be connected to the front side of the portion connected to the facility cooling apparatus 20 in the seawater supply line 10.

Some of the seawater utilization devices 40 may not be connected to the seawater circulation line 60. For example, the fresh water production device 41 may not be connected to the seawater circulation line 60. The sub supply line 30 can supply seawater corresponding to the amount of fresh water required in the offshore structure to the fresh water producing device 41. [

One of the sub supply lines 30 is provided with a pressure gauge 37. The pressure gauge 37 may be provided to the sub supply line 30 connected to the seawater utilization device 40 to which the seawater circulation line 60 among the seawater utilization devices 40 is connected. For example, the pressure gauge 37 may be located in a second sub-feed line 32 or a third sub-feed line 33 connected to the ballast tank 42 or seawater storage tank 43.

The drainage line (50) drains the seawater supplied to the seawater supply line (10) out of the seawater supply system (1). The drainage line (50) is provided with a drainage valve (51) for opening and closing the drainage line (50). The drain valve 51 is provided to be opened and closed based on the pressure sensed by the pressure gauge 37.

2 is a view showing a seawater supply system in which a drain valve is opened.

Referring to FIG. 2, the seawater supply system 1 can discharge the seawater introduced through the seawater supply line 10 through the drain line 50.

Specifically, the seawater supply system 1 can be used in a state where seawater is not supplied to the seawater utilization device 40. At this time, the valves of the sub supply line 30 are provided in a closed state. Therefore, the seawater introduced into the front end of the seawater supply line 10 is heat-exchanged with fresh water circulating in the fresh water circulation line 22 in the heat exchanger 23, and then discharged through the drainage line 50. When operating in this manner, the pressure gauge 37 detects the set value or the pressure in the set range.

3 is a view showing a seawater supply system in which a drain valve is closed;

Referring to FIG. 3, the seawater supply system 1 can supply the seawater introduced through the seawater supply line 10 to the seawater utilization device 40.

Specifically, the seawater supply system 1 can open the valves 35a, 35b, and 35c of the sub-supply line 30 during use. The valve 35b of the second sub supply line 32 connected to the ballast tank 42 or the valve 35c of the third sub supply line 33 connected to the seawater storage tank 43 is opened, The seawater can be introduced into the sub supply lines 32 and 33 where the valves 35b and 35c are opened. At this time, when the drain valve 51 is opened, as the seawater flows to the drain line 50 and the sub supply line 30, a pressure drop occurs in the portion where the pressure gauge 37 is located, Is lower than the set value or the set range described above. Then, when the pressure sensed by the pressure gauge 37 becomes lower than the set value or the set range, the drain valve 51 of the drainage line 50 is closed.

When the seawater supply to the seawater utilization device 40 is terminated and the valve is closed, the pressure sensed by the pressure gauge 37 increases due to seawater supplied to the seawater supply line 10. When the pressure detected by the pressure gauge 37 reaches the set value or the set range, the drain valve 51 of the drain line 50 is opened.

4 is a view showing a state in which seawater is supplied to the seawater utilization device and discharged together with the drainage line.

4, the discharge of seawater and the supply of seawater to the seawater utilization apparatus 40 can be performed together. For example, the fresh water producing device 41, which is the seawater utilizing device 40 to which the seawater circulation line 60 is not connected, may have a smaller amount of seawater than other seawater using devices 40. Therefore, even if the valve 35a of the first sub supply line 31 is opened while the seawater is discharged to the drain line 50, the pressure sensed by the pressure gauge 37 may be a set value or a set range.

According to an embodiment of the present invention, the seawater introduced into one seawater supply system can be supplied to the seawater utilization apparatus after cooling the exothermic facility.

Further, according to an embodiment of the present invention, the discharge of seawater or the supply to the seawater utilization apparatus can be efficiently controlled.

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.

10: Sea water supply line 20: Equipment cooling device
21: Heating equipment 22: Fresh water circulation line
23: heat exchanger 30: sub-feed line
40: Seawater utilization device 50: Drainage line
60: Seawater circulation line

Claims (5)

A seawater supply line to which a pump is provided at the front end and into which seawater flows;
A cooling device connected to the seawater supply line in a heat exchangeable manner;
A sub supply line connected to a rear end of the seawater supply line to supply seawater to the seawater utilization device and having a pressure gauge;
A drain line connected to a rear end of the sea water supply line to discharge seawater;
And a drain valve located in the drain line, the drain valve being opened and closed according to the pressure sensed by the pressure gauge,
Wherein the seawater utilization apparatus includes a fresh water production apparatus and a ballast tank,
Wherein the sub-feed line includes a first sub-feed line connected to the fresh water producing device and a second sub-feed line connected to the ballast tank,
Wherein the pressure gauge is located in the second sub-feed line. delete delete The method according to claim 1,
And a seawater circulation line connecting the ballast tank and the seawater supply line so that seawater in the ballast tank can flow toward the seawater supply line. The method according to claim 1,
The cooling device includes:
Heating equipment;
A fresh water circulation line connected to the exothermic facility and circulating fresh water; And
And a heat exchanger connected to the fresh water circulation line and the seawater supply line.
KR1020150130373A 2015-09-15 2015-09-15 Seawater supplying system KR101756312B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110481752A (en) * 2019-09-20 2019-11-22 南京盛航海运股份有限公司 A kind of modified cabin seawater pipe
CN111071425A (en) * 2020-01-10 2020-04-28 大连海事大学 Heat exchange system based on ship body heat dissipation and use method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100706046B1 (en) * 2006-02-23 2007-04-13 삼성중공업 주식회사 Environment friendly heat exchanger for ships and method thereof
KR101099742B1 (en) * 2009-11-27 2011-12-28 삼성중공업 주식회사 a sea water cooler in vessel
KR101514030B1 (en) * 2013-12-24 2015-04-22 동명대학교산학협력단 Pure water manufacturing system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100706046B1 (en) * 2006-02-23 2007-04-13 삼성중공업 주식회사 Environment friendly heat exchanger for ships and method thereof
KR101099742B1 (en) * 2009-11-27 2011-12-28 삼성중공업 주식회사 a sea water cooler in vessel
KR101514030B1 (en) * 2013-12-24 2015-04-22 동명대학교산학협력단 Pure water manufacturing system

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