KR20150120088A - Sea water treatment system of vessel usne electrolysis and controlling method thereof - Google Patents

Sea water treatment system of vessel usne electrolysis and controlling method thereof Download PDF

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Publication number
KR20150120088A
KR20150120088A KR1020140045813A KR20140045813A KR20150120088A KR 20150120088 A KR20150120088 A KR 20150120088A KR 1020140045813 A KR1020140045813 A KR 1020140045813A KR 20140045813 A KR20140045813 A KR 20140045813A KR 20150120088 A KR20150120088 A KR 20150120088A
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KR
South Korea
Prior art keywords
seawater
ship
chlorine
flow rate
supplied
Prior art date
Application number
KR1020140045813A
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Korean (ko)
Inventor
김종현
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대우조선해양 주식회사
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Priority to KR1020140045813A priority Critical patent/KR20150120088A/en
Publication of KR20150120088A publication Critical patent/KR20150120088A/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
    • 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
    • B63J4/002—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for for treating ballast water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/008—Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more pumps

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The present invention relates to a seawater treatment system of a vessel using electrolysis, and a controlling method thereof capable of supplying a prescribed amount of seawater to a chlorine generator from a sea chest by controlling an auxiliary pump which is not linked to a seawater system of a vessel. According to an embodiment of the present invention, the seawater treatment system of a vessel using electrolysis comprises: a sea chest to suck in seawater; a main pump to supply the seawater supplied from the sea chest to a seawater system of a vessel; and a chlorine generator to electrolyze the seawater supplied from the sea chest to supply the electrolyzed seawater back to the sea chest. The seawater treatment system of a vessel using electrolysis further comprises an auxiliary pump to supply the seawater supplied from the sea chest to the chlorine generator; and a controller to control the auxiliary pump to supply a prescribed amount of seawater to the chlorine generator.

Description

TECHNICAL FIELD [0001] The present invention relates to a seawater treatment system for a ship using an electrolysis method and a control method thereof,

The present invention relates to a seawater treatment system for a ship using an electrolysis method and a control method thereof, and more particularly, to a seawater treatment system for a ship, And more particularly, to a seawater treatment system and a control method thereof using an electrolysis method.

Electrolytic method of marine treatment system, especially marine microorganism removal system, electrolyzes seawater to make chlorine and spray it on sea chest of ship to prevent marine microorganisms from entering into marine system of ship Device.

The seawater processing system of the ship using the electrolysis method can supply the target chlorine by generating the target chlorine by supplying the seawater at a constant flow rate. Chlorine is the degree to which the flow rate to the seawater system sucked from the chestchest meets 0.5 PPM.

Seochest requires a pump to supply seawater for electrolysis to the ship's seawater treatment system. The seawater is supplied to the seawater treatment system of the ship using the main pump of the seawater system installed on the ship. The sea water system of the ship includes, for example, a sea water cooling system, a ballast water treatment system, and the like.

However, since the sea water of the sea chest is to be supplied to the sea water treatment system of the ship by using the main pump used in the sea water system of the ship, the use of the main pump is determined according to the operation of the sea water system, We have no choice but to supply sea water for chlorine production.

Therefore, there is a need for an improved seawater treatment system capable of supplying seawater from the septic using an independent pump without being associated with the seawater system of the ship.

Korean Patent Publication No. 2012-0108227 (2012.12.12) "Water Treatment System of Ship"

An object of the present invention is to provide a seawater processing system and method for controlling a marine vessel using an electrolysis method in which seawater is supplied to a chlorine generator at a predetermined amount by controlling an auxiliary pump not associated with a seawater system of a ship have.

According to an aspect of the present invention, there is provided a method of operating a water pump system including a body sump for sucking seawater, a main pump for supplying seawater supplied from the sieve chain to a seawater system of the ship, An auxiliary pump for supplying seawater supplied from the seed column to the chlorine generator, the system comprising: an auxiliary pump for supplying seawater supplied from the seed column to the chlorine generator; And a controller for controlling the auxiliary pump to supply a predetermined amount of seawater to the chlorine generator. The system for treating seawater of a ship using the electrolysis method is provided.

And a flow meter for measuring a flow rate supplied by the auxiliary pump.

The controller may receive the flow rate measured by the flow meter, determine whether the received flow rate is less than a predetermined amount, and apply a stop signal to the chlorine generator if the flow rate is less than a predetermined amount.

The auxiliary pump is preferably a centrifugal pump.

And a flow switch for supplying or blocking the seawater supplied by the auxiliary pump to the chlorine generator.

In addition, a seawater treatment system using an electrolysis method according to an embodiment of the present invention includes a seawater supply line connecting the seaweed system with the seawater system of the ship, And a chlorine supply line for supplying chlorine generated in the chlorine generator to the stratosphere.

According to another embodiment of the present invention, there is also provided a method of controlling an air conditioner, comprising: a body stew for sucking seawater; a main pump for supplying seawater supplied from the stern body to the seawater system of the ship; A control method of a seawater processing system for a ship using an electrolysis method including a chlorine generator for supplying a seawater to a straw, wherein a controller included in the seawater processing system of the ship is provided with an auxiliary pump A control method of a seawater treatment system of a ship using an electrolysis method is provided.

The control method of the seawater treatment system of the ship using the electrolysis method according to another embodiment of the present invention is characterized in that the controller receives the measured flow rate from the flow meter which measures the flow rate supplied by the auxiliary pump, , It is determined whether or not the received flow rate is less than a predetermined amount, and if it is determined that the flow rate is less than a predetermined amount, a stop signal is applied to the chlorine generator.

According to the embodiment of the present invention, there is an effect that seawater can be supplied to the chlorine generator by a predetermined amount by controlling the independently installed auxiliary pump not connected with the sea water system of the ship.

Further, according to the embodiment of the present invention, the auxiliary pump is controlled based on the flow rate received from the flow meter for measuring the flow rate of the seawater supplied to the chlorine generator through the auxiliary pump, so that the flow rate of the seawater does not become a certain amount or less, There is also an effect. In particular, it is possible to prevent an increase in the pressure of the entire system by controlling the operation of the flow rate of the seawater to a predetermined amount or less.

According to the embodiment of the present invention, when the flow rate measured from the flow meter is less than a predetermined amount, a stop signal is applied to the chlorine generator, and a flow rate switch installed in the chlorine generating line between the auxiliary pump and the chlorine generator is closed, The concentration can be maintained at the reference concentration. High chlorine content can affect not only marine microorganisms but also pipe corrosion.

According to the embodiment of the present invention, since the auxiliary pump is used as a centrifugal pump and the flow rate of the seawater can be maintained at a certain level, the design pressure and the operating pressure of the entire system are lowered, There is also.

1 is a view for explaining a seawater treatment system for a ship using an electrolysis method according to an embodiment of the present invention, and FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a seawater desalination system,

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

1 is a view for explaining a seawater treatment system of a ship using an electrolysis method according to an embodiment of the present invention.

Referring to FIG. 1, a seawater treatment system 1 of the present invention using an electrolysis method according to an embodiment of the present invention includes a seawater supply line 10 for connecting seaweeds 10 for sucking seawater to a seawater supply system (not shown) A chlorine generating line L2 branched from the sea water supply line L1 and connected to the ship management apparatus VMS 30 and a chlorine generating line 35 provided in the ship management apparatus 30 And a chlorine supply line (L3) for supplying chlorine to the chestchester (10).

The seawater supply line L1 is provided with a main pump 20 for supplying the sea water of the ship chest 10 to the sea water system of the ship. Between the main pump 20 and the body 10, a filter 25 for filtering seawater supplied from the body 10 is provided.

The chlorine production line L2 branched from the seawater supply line L1 is provided with a valve B1 for interrupting the inflow of seawater passing through the seawater supply line L1. Due to the opening of the valve B1, the seawater of the ship 10 is supplied to the ship management device 30. [ More specifically, seawater is supplied to the chlorine generator 35 through the auxiliary pump 31. At this time, the controller 34 controls the auxiliary pump 31 to maintain the flow rate of the seawater supplied to the chlorine generator 35 at a constant level.

More detail the controller 34 is a secondary pump 31 to the receiving the flow rate measured by the flow meter 33 for measuring the flow rate of water supplied through, and based on the received flow rate pre-set amount (5M 3 / H) over And controls the current value applied to the auxiliary pump 31 so that the flow rate of the seawater can be maintained by a predetermined amount. Accordingly, the chlorine generator 35 can stably supply a predetermined amount of seawater required to generate the target chlorine.

The controller 34 also applies a stop signal for stopping the generation of chlorine to the chlorine generator 35 when the flow rate measured from the flow meter 33 is less than a predetermined amount. The flow rate switch 32 provided between the auxiliary pump 31 and the chlorine generator 35 is closed to prevent the seawater supplied from the auxiliary pump 31 from being supplied to the chlorine generator 35.

On the other hand, the chlorine generator 35 generates chlorine by the seawater supplied through the chlorine generating line L2. Thus, the chlorine produced by the chlorine generator 35 is supplied to the chestchest 10 through the chlorine supply line L3. The body 10, which is connected to the chlorine supply line L3, can remove microorganisms and the like contained in the seawater by supplying chlorine.

A flow meter 41 is also provided in the chlorine supply line L3 to measure the flow rate of chlorine generated and supplied from the chlorine generator 35. [

Since the flow meters 33 and 41 are provided in the chlorine generating line L2 and the chlorine supply line L3 as described above, it is possible to observe whether the flow rate of the flow is properly flowing in the lines L2 and L3.

Reference numerals 36 and 37 are pressure gauges and the pressure gauge 36 is installed between the auxiliary pumps 31 at the branching point in the seawater supply line L1 to measure the pressure of the seawater supplied from the ship chest 10, The pressure gauge 37 measures the pressure of the seawater through the auxiliary pump 31.

A control method of a seawater processing system of a ship having such a configuration will now be described with reference to FIG.

2 is a flowchart illustrating a method of controlling a seawater treatment system according to an embodiment of the present invention.

Referring to FIG. 2, the controller 34 included in the seawater treatment system of the ship controls the auxiliary pump 31 so that the seawater of the ship 10 is supplied to the chlorine generator 35 (S11).

Thereafter, the controller 34 receives the measured flow rate from the flow meter 33 installed between the auxiliary pump 31 and the chlorine generator 35 (S13).

The controller 34 determines whether the received flow rate maintains a predetermined constant flow rate (S15).

If it is determined in step S15 that the received flow rate is maintained at a preset constant flow rate, the controller 34 controls the chlorine generated in the chlorine generator 35 to be supplied to the sieve 10 in step S17. However, when the received flow rate is below or exceeds a preset predetermined flow rate, the controller 34 adjusts the current value applied to the auxiliary pump 31 to maintain a predetermined amount.

If it is determined in step S15 that the received flow rate does not maintain a preset constant flow rate, that is, if the received flow rate is equal to or less than a predetermined flow rate, the controller 34 applies a stop signal to the chlorine generator 35 in step S16. Further, the controller 34 controls to close the flow rate switch 32 installed between the auxiliary pump 31 and the chlorine generator 35.

That is, when the flow rate is equal to or less than a constant flow rate, the controller 34 can not supply the chlorine generator 35 with a stop signal because the concentration of chlorine generated in the chlorine generator 35 can not satisfy the reference concentration .

By doing so, the pump for supplying the seawater of the ship chest 10 by a predetermined amount to generate chlorine and supply it to the ship chest 10 is installed not in the main pump 20 used in the sea water system of the ship but in the auxiliary pump 31) can be used to broaden the range of use. Also, when the flow rate supplied to the chlorine generator (35) is less than a predetermined amount, a stop signal can be applied to the chlorine generator (35) to stably satisfy the reference concentration of chlorine.

The invention being thus described, it will be obvious that the same way may be varied in many ways. Such modifications are intended to be within the spirit and scope of the invention as defined by the appended claims.

1: Ship's seawater treatment system 10:
20: main pump 25: filter
30: Ship management device 31: Auxiliary pump
32: Flow switch 33, 41: Flow meter
34: Controller 35: Chlorine generator
36, 37: Pressure gauge L1: Sea water supply line
L2: Chlorine production line L3: Chlorine supply line

Claims (8)

A main pump for supplying the seawater supplied from the septic tank to the seawater system of the ship; and a chlorine generator for electrolyzing the seawater supplied from the septic tank and supplying the seawater to the ship stew again In a seawater treatment system for a ship using a method,
An auxiliary pump for supplying seawater supplied from the ship chest to the chlorine generator; And
And a controller for controlling the auxiliary pump to supply a predetermined amount of seawater to the chlorine generator. The method according to claim 1,
Further comprising a flow meter for measuring a flow rate supplied by the auxiliary pump. The method of claim 2,
Wherein the controller receives the flow rate measured by the flow meter, determines whether the received flow rate is less than a predetermined amount, and applies a stop signal to the chlorine generator when the predetermined amount is less than a predetermined amount Ship water treatment system. The method according to claim 1,
Wherein the auxiliary pump is a centrifugal pump. The method according to claim 1,
Further comprising a flow rate switch for supplying or blocking the seawater supplied by the auxiliary pump to the chlorine generator. The method according to claim 1,
A seawater supply line connecting the septic system and the seawater system of the ship; a chlorine generation line branched from the seawater supply line and connecting the ship management system (VMS); and a chlorine- And a chlorine supply line for supplying the electrolyzed water to the sea. A main pump for supplying the seawater supplied from the septic tank to the seawater system of the ship, and a chlorine generator for electrolyzing the seawater supplied from the septic tank and supplying the seawater to the ship stew again A method of controlling a seawater treatment system of a ship using a method,
Wherein the controller included in the seawater treatment system of the ship controls an auxiliary pump to supply a predetermined amount of seawater of the septic stream to the chlorine generator. The method of claim 7,
Wherein the controller receives a measured flow rate from a flow meter that measures a flow rate supplied by the auxiliary pump,
Wherein the controller determines whether or not the received flow rate is less than a predetermined amount, and when the determined amount is equal to or less than a predetermined amount, the controller applies a stop signal to the chlorine generator.
KR1020140045813A 2014-04-17 2014-04-17 Sea water treatment system of vessel usne electrolysis and controlling method thereof KR20150120088A (en)

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KR1020140045813A KR20150120088A (en) 2014-04-17 2014-04-17 Sea water treatment system of vessel usne electrolysis and controlling method thereof

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Application Number Priority Date Filing Date Title
KR1020140045813A KR20150120088A (en) 2014-04-17 2014-04-17 Sea water treatment system of vessel usne electrolysis and controlling method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230045649A (en) * 2021-09-27 2023-04-05 대우조선해양 주식회사 Ammonia Drain System And Method For Ship

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230045649A (en) * 2021-09-27 2023-04-05 대우조선해양 주식회사 Ammonia Drain System And Method For Ship

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