KR20150118356A - Drain tank of vessel - Google Patents

Drain tank of vessel Download PDF

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Publication number
KR20150118356A
KR20150118356A KR1020140044097A KR20140044097A KR20150118356A KR 20150118356 A KR20150118356 A KR 20150118356A KR 1020140044097 A KR1020140044097 A KR 1020140044097A KR 20140044097 A KR20140044097 A KR 20140044097A KR 20150118356 A KR20150118356 A KR 20150118356A
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KR
South Korea
Prior art keywords
separation chamber
rainwater
chemical
oil
level
Prior art date
Application number
KR1020140044097A
Other languages
Korean (ko)
Inventor
정순철
Original Assignee
현대중공업 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 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR1020140044097A priority Critical patent/KR20150118356A/en
Publication of KR20150118356A publication Critical patent/KR20150118356A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J4/00—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for
    • B63J4/006—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for for treating waste water or sewage
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Removal Of Floating Material (AREA)

Abstract

In the present invention, a chemical separation chamber is formed by providing a partition wall in a conventional oil separation chamber, and rainwater flowing into the chemical separation chamber at the time of rainstorming is moved to the oily water separation chamber, Lt; / RTI >
To this end, the present invention provides a drain tank for an offshore installation comprising an oily water separation chamber and an oil separation chamber separated by a first partition, the drain tank comprising: a second partition wall provided in the oil separation chamber; A chemical separation chamber formed in the oil separation chamber by the second partition; A water level meter for measuring a level of the fluid flowing into the chemical separation chamber; A specific gravity measuring device for measuring a specific gravity of the fluid flowing into the chemical separation chamber; And a control unit which confirms the level of the fluid flowing into the chemical separation chamber based on a signal applied from the level gauge and confirms that the fluid flowing into the chemical separation chamber based on the signal from the specific gravity measuring unit is rainwater, And a rainwater discharge line for discharging rainwater in the chemical separation chamber to the oily water separation chamber.
Accordingly, it is possible to prevent the inflow of rainwater into the oil separation chamber, and to prevent the rainwater from being supplied to various devices installed in the offshore facility or the oil receiving tank.

Description

{DRAIN TANK OF VESSEL}

[0001] The present invention relates to a drain tank of an offshore facility, in particular, a chemical separation chamber is provided by providing a partition in a conventional oil separation chamber, and rainwater flowing into the chemical separation chamber during rainstorming is moved to the oily water separation chamber, Drainage tank of an offshore installation that prevents rainwater from being introduced.

1 is a schematic view showing a configuration of a drain tank of a marine facility according to the prior art.

1, the drain tank 1 is divided into an oily water separating chamber 3 and an oil separating chamber 5 in which an oil component is contained via one partition wall 2, as shown in Fig.

The oily water separation chamber 3 is provided with a gas turbine generator skid installed in the non-hazardous area of the main deck through the oily water inflow line 4, a gas turbine generator skid installed in the main deck, a diesel pump coaming OILY WATER, which is emitted from DIESEL TANK COAMING, ESSENTIAL DIESEL ENGINE GENERATOR, SAFETY SHOWER, IA RECEIVER, INSTRUMENT AIR SKID, Oily water from safety shower installed in non-hazardous area of CELLAR DECK, WELL TEST SEPARATOR, MANIFOLD COAMING DRAIN, FUEL GAS CONDITIONING SKID FUEL GAS CONDITIONING SKID, VENT K / O DRUM LIQUID PUMP, VENT K / O DRUM COOMING, The oily water discharged from the PIG LAUNCHER COALING DRAIN and the VENT K / O DRUM flows into the oily water separating chamber 3, The heavy water sinks downward and the oil having a specific gravity lower than that of water flows upward into the oil separation chamber (5) over the partition wall (2). The water that has settled downward flows into the space formed in the partition wall 2 and is discharged to the sea through the water discharge line 8.

The remaining oil used from various devices (for example, an engine, a generator, etc.) installed in an offshore facility is introduced into the oil separation chamber 5 through the oil inflow line 6, and the chemical injection skid (CHEMICAL INJECTION SKID), DIESEL TANK, ESSENTIAL DIESEL ENGINE GENERATOR, FUTURE CHEMICAL INJECTION SKID, DIESEL FUNNEL, and WCP. The oil introduced into the oil separation chamber 5 is returned to various equipment installed in the offshore facility through the oil discharge line 9 or supplied to an oil tank (not shown) for storing oil residue do.

According to the structure of the conventional drain tank 1 as shown in Fig. 1, the oil component contained in the oily water introduced into the oily water separating chamber 3 is lower in specific gravity than water and floating on the water, Is introduced into the oil separation chamber (5) through the partition (2).

However, since the chemical is not separated from water like oil, conventionally, the chemical is also formed to flow into the oil separation chamber 5.

As described above, in the prior art, the drain tank 1 is constituted to allow the chemical to flow into the oil separation chamber 5. When the chemical injection skid or the like is installed on the outdoor deck, rainwater flows into the oil separation chamber 5 There is a case in which the gas is introduced.

When the rainwater flows into the oil separation chamber 5, the rainwater is returned to the various equipment installed in the offshore facility or the oil storage tank (not shown) And the like.

Korean Patent Publication No. 10-2012-103181 (September 19, 2012)

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a chemical separation chamber in which an additional oil separation chamber is provided, And it is an object of the present invention to provide a drain tank for an offshore facility that can prevent rainwater from flowing into a separation chamber.

According to an aspect of the present invention, there is provided a drain tank for an offshore installation including an oily water separation chamber divided by a first partition and an oil separation chamber, A second partition wall provided in the separation chamber; A chemical separation chamber formed in the oil separation chamber by the second partition; A water level meter for measuring a level of the fluid flowing into the chemical separation chamber; A specific gravity measuring device for measuring a specific gravity of the fluid flowing into the chemical separation chamber; And a control unit which confirms the level of the fluid flowing into the chemical separation chamber based on a signal applied from the level gauge and confirms that the fluid flowing into the chemical separation chamber based on the signal from the specific gravity measuring unit is rainwater, And a rainwater discharge line for discharging rainwater in the chemical separation chamber to the oily water separation chamber.

According to the drain tank of the present invention, a separate chemical separation chamber is formed by providing a partition in a conventional oil separation chamber, rainwater flowing into the chemical separation chamber during rain is moved to the oily water separation chamber, Can be prevented from being introduced. Accordingly, rainwater can be prevented from being supplied to various apparatuses installed in the offshore facility or oil mixed with rainwater into the oil receiving tank.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a configuration of a drain tank of a marine facility according to the prior art; FIG.
FIG. 2 is a schematic view of a drain tank of a marine facility according to an embodiment of the present invention; FIG.

Hereinafter, a drain tank of a marine equipment according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a schematic view of a drain tank of an offshore facility according to an embodiment of the present invention. Referring to FIG.

2, the oily water separation chamber 13 is formed in the drain tank 10 by the first partition 20, and the oily water containing the oil component flows through the oily water inflow line 33.

The oily water introduced into the oily water separating chamber 13 is separated into water and oil by the difference in specific gravity between water and oil. Oil having a specific gravity lower than that of water flows upward through the first partition 20, Water having a specific gravity larger than that of the oil flows downward into the space formed in the first partition 20 and is discharged to the sea through the water discharge line 43.

The oil separation chamber 15 is formed by the first partition wall 20 and the second partition wall 25 so that the remaining oil used in various devices flows through the oil inflow line 35.

The oil introduced into the oil separation chamber 15 is returned to various devices installed in the offshore facility through the oil discharge line 45 or is returned to the oil separation tank 15 through an oil discharge tank 45 .

The chemical separation chamber 17 is formed by the second partition 25, and the chemical flowing out from various chemical equipment flows through the chemical inlet line 37.

In this way, the chemical introduced into the chemical separation chamber 17 is returned to various equipment installed in the offshore facility together with the oil through the chemical discharge line 47.

When the chemical injection chamber 17 is installed on the weather deck, the chemical separation chamber 17 is filled with rainwater through the chemical inflow line 37 at the time of rainy weather.

The second partition 25 is provided in the oil separation chamber 15 formed by the first partition 20. The second partition 25 is provided in the oil separation chamber 15 to perform separate chemical separation A seal 17 is formed.

The water level meter 60 is installed in the chemical separation chamber 17 to measure the level of the fluid flowing into the chemical separation chamber 17 in real time and to apply the measurement result to the control unit 80.

The level gauge 60 may be implemented as a level transmitter and the level gauge 60 implemented as a level transmitter may be configured such that when the level of the fluid flowing into the chemical separation chamber 17 reaches a certain level (For example, L1, L2, H1, and H2) to the control unit 80 every time.

The specific gravity meter 70 is used to check whether the fluid introduced into the chemical separation chamber 17 is rainwater or chemical. The specific gravity meter 70 measures the specific gravity of the fluid introduced into the chemical separation chamber 17, .

The above-described specific gravity measurer 70 may be implemented as a differential pressure transmitter.

The rainwater discharge line 50 is provided so that the chemical separation chamber 17 and the oily water separation chamber 13 are connected to each other so that the rainwater in the chemical separation chamber 17 is separated from the oily water separation chamber 13 ).

The rainwater discharge line 50 is preferably provided with a valve 53 that is automatically opened and closed under the control of the controller 80 and a pump 55 that is driven under the control of the controller 80.

On the other hand, based on the signal from the water level meter 60, the control unit 80 determines whether the level of the fluid flowing into the chemical separation chamber 17 reaches a certain level, When the fluid flowing into the chemical separation chamber 17 is confirmed to be rainwater, the valve 53 and the pump 55 provided in the rainwater discharge line 50 are controlled to separate rainwater in the chemical separation chamber 17 from the oily water separation chamber (13).

The control unit 80 determines whether the level of the fluid flowing into the chemical separation chamber 17 reaches the first water level based on a signal (for example, H1) applied from the water level meter 60 It is confirmed whether the fluid flowing into the chemical separation chamber 17 is rainwater based on a signal applied from the specific gravity measuring instrument 70. If the fluid flowing into the chemical separation chamber 17 is confirmed to be rainwater, It is confirmed whether or not the water level of the fluid flowing into the chemical separation chamber 17 reaches the second water level based on a signal (for example, H2) applied from the measuring instrument 60. When the level of the fluid flowing into the chemical separation chamber 17 reaches the second water level, the control unit 80 opens the valve 53 provided in the rainwater discharge line 50, To discharge the rainwater in the chemical separation chamber 17 into the oily water separation chamber 13.

On the other hand, when the fluid flowing into the chemical separation chamber 17 is confirmed as chemical based on the signal applied from the specific gravity measuring instrument 70, the control unit 80 opens the valve provided in the chemical discharge line 47, The chemical in the separation chamber 17 is returned to the various devices installed in the offshore facility through the chemical discharge line 47.

Hereinafter, operation of the drain tank of an offshore installation according to an embodiment of the present invention will be described with reference to FIG.

First, the drain tank 10 of the offshore facility according to the present invention is connected to the oily water separation chamber 13, the oil separation chamber 15, the chemical separation chamber 17 The oily water containing the oil component flows into the oily water separation chamber 13 and is stored therein. The remaining oil used in various devices is stored in the oil separation chamber 15, The chemicals flowing out from the various chemical equipments are introduced and stored.

In the case where the drain tank 10 is exposed to rain in a state where the drain tank 10 is divided into the oily water separation chamber 13, the oil separation chamber 15 and the chemical separation chamber 17, if a chemical injection skid or the like is installed on the outdoor deck The rainwater flows into the chemical separation chamber 17.

The water level gauge 60 applies a signal (for example, H1) to the control unit 80 and the control unit (not shown) 80 determines that the level of the fluid flowing into the chemical separation chamber 17 has reached the first water level based on the signal applied from the water level measuring instrument 60. Based on the signal applied from the specific gravity measuring instrument 70 It is confirmed whether the fluid flowing into the chemical separation chamber 17 is rainwater.

When the fluid flowing into the chemical separation chamber 17 is confirmed to be rainwater, it is determined whether or not the level of the fluid flowing into the chemical separation chamber 17 reaches the second water level based on a signal supplied from the level gauge 60 Check.

When the level of the fluid flowing into the chemical separation chamber 17 reaches the second water level, the control unit 80 opens the valve 53 provided in the rainwater discharge line 50, To discharge the rainwater in the chemical separation chamber 17 into the oily water separation chamber 13.

In this manner, a separate chemical separation chamber 17 is formed through the second partition 25 so that rainwater is collected in the chemical separation chamber 17 during rainy days, and the rainwater introduced into the chemical separation chamber 17 is reused It is possible to prevent the rainwater from flowing into the oil separation chamber 15 by discharging the oil into the oily water separation chamber 13. [ Accordingly, it is possible to prevent rainwater from being introduced into various devices installed in an offshore facility, an oil receiving tank, and the like.

The drain tank of the offshore installation of the present invention is not limited to the above-described embodiments but can be variously modified within the scope of the technical idea of the present invention.

10. Drain tank, 13. Oily water separation chamber,
15. Oil separation chamber, 17. Chemical separation chamber,
20. A first bulkhead, 25. A second bulkhead,
33. Oily water inflow line, 35. Oil inflow line,
37. Chemical inflow lines, 43. Water discharge lines,
45. Oil discharge lines, 47. Chemical discharge lines,
50. Rainwater discharge line, 53. Valve,
55. Pump, 60. Level gauge,
70. Density measurer, 80. Control unit

Claims (3)

A drain tank of an offshore installation comprising an oily water separation chamber and an oil separation chamber separated by a first partition,
A second diaphragm installed in the oil separation chamber;
A chemical separation chamber formed in the oil separation chamber by the second partition;
A water level meter for measuring a level of the fluid flowing into the chemical separation chamber;
A specific gravity measuring device for measuring a specific gravity of the fluid flowing into the chemical separation chamber; And
And a control unit which confirms the level of the fluid flowing into the chemical separation chamber based on a signal applied from the level gauge and confirms that the fluid flowing into the chemical separation chamber based on the signal from the specific gravity measuring unit is rainwater, And a rainwater discharge line for discharging rainwater in the separation chamber to the oily water separation chamber. The apparatus according to claim 1, wherein, in the rainwater discharge line,
And a valve that is automatically opened and closed under the control of the control unit is installed. The apparatus of claim 1,
When the level of the fluid flowing into the chemical separation chamber reaches a first level based on a signal applied from the level gauge, it is checked whether the fluid flowing into the chemical separation chamber is rainwater based on a signal applied from the specific gravity measuring device , And when the fluid introduced into the chemical separation chamber is confirmed as rainwater, it is confirmed based on a signal from the water level meter that the level of the fluid flowing into the chemical separation chamber reaches a second water level, Wherein when the level of the fluid flowing into the separation chamber reaches the second water level, the valve provided in the rainwater discharge line is opened to discharge the rainwater in the chemical separation chamber to the oily water separation chamber.
KR1020140044097A 2014-04-14 2014-04-14 Drain tank of vessel KR20150118356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140044097A KR20150118356A (en) 2014-04-14 2014-04-14 Drain tank of vessel

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Application Number Priority Date Filing Date Title
KR1020140044097A KR20150118356A (en) 2014-04-14 2014-04-14 Drain tank of vessel

Publications (1)

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KR20150118356A true KR20150118356A (en) 2015-10-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU204354U1 (en) * 2020-12-29 2021-05-21 Федеральное государственное бюджетное образовательное учреждение высшего образования «Государственный университет морского и речного флота имени адмирала С.О. Макарова» AUTONOMOUS FLOATING STATION FOR SHIP'S OIL-CONTAINING WATER PURIFICATION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU204354U1 (en) * 2020-12-29 2021-05-21 Федеральное государственное бюджетное образовательное учреждение высшего образования «Государственный университет морского и речного флота имени адмирала С.О. Макарова» AUTONOMOUS FLOATING STATION FOR SHIP'S OIL-CONTAINING WATER PURIFICATION

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