KR20130025735A

KR20130025735A - Integrated device of treating ballast water for fpso

Info

Publication number: KR20130025735A
Application number: KR1020110089234A
Authority: KR
Inventors: 홍성일; 윤상찬; 황인순
Original assignee: 대우조선해양 주식회사
Priority date: 2011-09-02
Filing date: 2011-09-02
Publication date: 2013-03-12

Abstract

PURPOSE: An integrated ballast water treatment apparatus is provided to reduce the installation cost of the ballast water treatment apparatus satisfying the criteria of the IMO international convention; to minimize the installation space and the electricity consumption; and to prevent the marine pollution. CONSTITUTION: An integrated ballast water treatment apparatus for FPSO includes an active material storage(110); and more than one of a ballast tank(151). The active material storage stores active materials which is capable of killing aquatic organisms in the ballast water. The ballast tank is installed in the hull(101) of FPSP(100). The active material storage is installed in one or more of the ballast tanks. One or more of ballast tanks above use seawater collected from one or more of a seawater suction unit(150) as a ballast water by getting supply from each ballast lines(130) which is one or more. An injection device(120) is additionally included that injects the active materials stored in the active material storage to each ballast lines.

Description

Integrated device of treating ballast water for FPSO}

The present invention relates to an integrated ballast water treatment device for FPSO that can easily process microorganisms that grow in ballast water used for FPSO.

If the ship is not loaded with enough cargo during operation, the propeller and rudder may not work effectively in the water and may work out of the water. Therefore, in order to maintain the equilibrium of the ship and to provide the optimum speed and efficiency, the seawater is filled in the ballast tank in the ship to maintain the proper draft.

At this time, the seawater filled in the ballast tank is called ballast water, and serves to maintain the balance and stability of the vessel.

The ballast water is placed on board before leaving the loading port and discharged offboard the ship before entering the loading port or loading the cargo. Therefore, the ballast water is continuously injected and discharged in the process of loading and discharging cargo on the ship, and the ballast water moves with the ship.

The ballast water is supplied by a pump or the like and stored in a closed compartment inside the ship. At this time, the ballast water contains various microorganisms such as plankton, bacteria and other aquatic organisms that live in the water supply area, and when the ballast water is discharged to coasts and harbors near the loading port, the ecosystem of the surrounding sea is disturbed. You will be tongued.

In addition, since the ballast water is kept closed and lightless for a long period of time, the amount of dissolved oxygen is lowered, and the discharge of the ballast water in the empty oxygen state adversely affects the living organisms in the surrounding sea area. .

In addition, if the ballast water is discharged to foreign ports, etc. and acts as a passage for 'unwanted harmful aquatic organisms', it not only destroys the indigenous marine ecosystem but also threatens the health by influx of pathogens and toxic organisms. It can also be quite expensive to process exotic species.

As the damage caused by ship ballast water spreads, the International Maritime Organization (IMO) recognizes this seriousness, adopts the International Convention on Ship Ballast Water and Sediment Management, and applies ballast water exchange standards from 2011. From 2017, mandatory installation of Ballast Water Treatment (FPSO) equipment in Floating Production Storage and Offloading (FPSO), and after 2017, all vessels will be required to install treatment equipment that meets ballast water treatment standards established by IMO. Is expected.

In general, there are three ways to reduce the influx of foreign marine species introduced through ballast water.

First, the ballast water is exchanged at sea before entering a specific port. This is a highly available method because it is possible to simplify the ballast system because it is possible only to have a seawater inflow and discharge configuration for exchanging ballast water.

However, since this method is carried out in the sea area of the exchange place far from the land, the coarse waves exist and the water pressure of seawater is higher than that of the land coast, which increases the longitudinal bending moment of the ship during the ballast water movement. . As a result, the hull deformation occurs, the hull posture anxiety in the ballast water exchange process, etc., the problem that it is difficult to secure the safety of the ship during the replacement process.

Second, ballast reception facilities and treatment facilities are installed and operated on the coast or on land. This is because the ship does not need to install a separate treatment device, the maintenance and risk of the ship is low in recent years.

However, the costs and complaints associated with the installation and operation of a large capacity facility may be incurred, and there is still a lack of useful devices, and research is being actively conducted.

Third, ballast water treatment facilities are installed on ships. This mandates the installation of such treatment facilities in the IMO Convention.

However, it is expensive to install the ballast water treatment device, and may cause loss of space, weight control, and power consumption for the treatment device.

On the other hand, ships equipped with various drilling equipments for drilling oil or gas existing in the basement of the seabed are rig ships or floating crude oil production storage and unloading facilities (for exclusive use of conventional seabed drilling). FPSO, Floating Production Storage and Offloading (hereinafter referred to as FPSO), and drillships that have been recently developed and used for offshore drilling.

Rig ships or FPSOs dedicated to subsea drilling can only be sailed by other tugboats, and mooring devices are used for subsea drilling, anchored at a point on the sea, and drillships have been recently developed and advanced drilling equipment. It is manufactured in the same form as a general ship so that it can be sailed by its own power.

However, such ballast water treatment methods generate many inefficient aspects to be applied to FPSOs that stay in a fixed place for a long time, rather than a general ship.

Therefore, technologies for the treatment of optimized ballast water considering the operational characteristics of the FPSO ballast water while satisfying the IMO international agreement are being actively researched.

The present invention has been invented in view of the above circumstances, and by inventing an optimized ballast water treatment device in which ballast water operation characteristics of the FPSO are considered, a separate device for treating ballast water is not required, or a small device. It aims to meet the standards of the IMO Convention, minimize installation space and power consumption, and lower costs.

According to an aspect of the present invention for achieving the above object, in the ballast water treatment apparatus installed in the FPSO, the active material storage container for storing the active material capable of killing aquatic organisms contained in the ballast water 110 ; And one or more ballast tanks 151 installed on the hull 101 of the FPSO 100 and storing and discharging the ballast water, wherein the active material storage container 110 includes the one or more ballast tanks. 151) is provided inside one or more; provides an integrated ballast water treatment apparatus for FPSO.

The one or more ballast tanks 151 are supplied from each of the one or more ballast lines 130 and 230 with seawater taken from one or more seawater inlets 150 and 250 to be used as ballast water. An injection device (120) for injecting the active material stored in the 110 into each of the one or more ballast lines (130); And further comprising:

The material of the ballast lines (130, 230) is characterized in that the reinforced glass fiber (reinfored glass fiber).

One or more ballast pumps (131, 231) are installed at the rear end of each of the one or more sea water inlets (150, 250) for supplying the sea water to the one or more ballast tanks (151); Injecting the active material into the rear end of each of the one or more ballast pumps (131, 231);

The injection device 120 is an eductor or a pump; characterized in that.

And a redundancy line 220 connecting the ballast lines 130 and 230 connected to each of the one or more ballast pumps 131 and 231 to each other.

The redundancy line 220 is connected to the ballast lines (130, 230) at the rear end of the at least one seawater inlet and at least one ballast pump (131, 231).

The active material storage container 110 is a capacity that can store the amount of use of the active material twice;

The manifold 160 for receiving the active material from the outside of the FPSO 100 is installed in the active material storage container 110;

A pump 180 for supplying the active material loaded on the barge 190 to the active material storage container 110; A hose 170 for delivering the active material supplied by the pump 180; One end of the hose 170 is connected to the manifold 160, the other end is connected to the discharge port of the pump 180 to supply the active material to the active material storage container 110; do.

According to another aspect of the present invention, in the ballast water treatment apparatus installed in the FPSO, the active material storage container for storing the active material capable of killing aquatic organisms in the ballast tank 151 for storing and discharging the ballast water ( Injecting the active material into the ballast line (130, 230) through which the ballast water flows to provide an integrated ballast water treatment apparatus for FPSO, characterized in that the installation 110).

The active material is injected into the ballast lines (130, 230) by using an eductor or a pump.

According to the present invention, by inventing an optimized FPSO dedicated ballast water treatment device in consideration of the characteristics of ballast water operation of the FPSO, a separate device for the treatment of ballast water is not required, or only a small device is used. In order to reduce the installation cost of the ballast water treatment system, minimize the installation space and power consumption, and prevent marine pollution.

In addition, new FPSOs as well as existing FPSOs can be treated with microorganisms in the ballast water with minimal design changes.

In addition, the space utilization of the FPSO topside can be increased by installing the active material storage container inside the ballast tank installed inside the hull of the FPSO.

1 is a side cross-sectional view schematically showing an FPSO equipped with an integrated ballast water treatment apparatus for an FPSO according to the present invention.
Figure 2 is a view showing in detail the integrated ballast water treatment apparatus for FPSO according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the preferred embodiment of the present invention. In the drawings, like reference numerals refer to like elements throughout. The same reference numerals in the drawings denote like elements throughout the drawings.

Since general ships move from port A to port B, the inflow and discharge of ballast water is always required, and at this time, the ballast water is used by inflowing seawater near the port where cargo is unloaded.

Substances included in these ballast waters include solids, mud, plankton-scale organisms, and micro-organisms, and ballast water treatment processes are key to sterilization of plankton and micro-microorganisms.

However, incorporation of large-scale living organisms and non-living organisms such as solids and muds greatly reduces the treatment efficiency of ballast water treatment. Therefore, in the ballast water treatment process in general ships, a filtration pretreatment system for removing large foreign substances such as the above, or hydrocyclone for removing aggregates, sediments, sludge, etc. from the ballast water, etc. Additional equipment will be needed.

FPSO (100, Floating Production Storage and Offloading) to which the present invention is applied is a floating crude oil production, storage, and unloading facility, which stays floating at a point in a marine oilfield area without any structure connected to land ( Floating), the extraction, production of crude oil, storage in huge tanks under the ship (Storage), and offloading of stored oil through carriers such as shuttle tankers. It is a structure.

Therefore, unlike a regular ship, since it is fixed to the sea for a long time without moving from port A to port B, it is not necessary to always use facilities for treating ballast water like a general ship.

In addition, the ballast number of offshore structures is free of large foreign matter such as solids and mud, which are included in the ballast number of a general ship.

Therefore, it is not necessary to install all the various equipment for the ballast water treatment installed in a general ship, and devised the present invention in view of this point.

In general, there are two methods of treating ballast water in ships: physical treatment and chemical treatment.

Physical treatments include ultraviolet radiation, heating, ultrasonics, and chemical treatments such as chlorine, chlorine dioxide, ozone, hydrogen peroxide and many other organic chemicals.

Among the physical treatment methods, the ultraviolet irradiation method is inexpensive, and the device is simple, but the wavelength is short, the transmission power is weak, the variation and survival of the species may occur, and the efficiency may be reduced in the turbid water quality.

In addition, the heating method does not require the pretreatment, there is an advantage that can use the waste heat of the ship, but it is difficult to maintain a constant temperature, need continuous management during navigation, there is a concern of secondary pollution of the ocean by the discharge of hot water.

Therefore, in the present invention, a simple device for the treatment of ballast water is installed in a ballast tank installed inside the hull of the FPSO, and the chemical treatment of the ballast water is applied to the device to suit the FPSO to solve the above problems. It was.

1 is a side cross-sectional view schematically showing an FPSO equipped with an integrated ballast water treatment apparatus for an FPSO according to the present invention, and FIG. 2 is a view showing in detail an integrated ballast water treatment apparatus for an FPSO according to the present invention.

Figure 1 (a) of one embodiment of the present invention is an FPSO (100) consisting of an active material storage container 110 and a ballast tank 151, Figure 1 (b) is a barge 190 further configured FPSO 100.

The active material storage container 110 stores the active material capable of killing the aquatic organisms contained in the ballast water, and the active material storage container 110 is for storing the active material, so that the container or tank is used. Shaped containers may be used.

Since the amount of active substance used is determined in proportion to the amount of ballast, the capacity of the active substance storage container 110 is determined by the amount of active substance used for the amount of ballast recommended by the manufacturer of the active substance.

The active material storage container 110 is preferably designed to be able to store two times the amount of use in consideration of the emergency without the need to store a large amount of the active material unnecessarily.

This is because the ballast water treatment system does not need to be used all the time because the FPSO is fixed in one place for a long time unlike a general ship.

Active substances are common chemicals that can kill various microorganisms and shellfish in aquatic life contained in ballast water. Chlorinated fungicides, chlorine dioxide, acetic acid peroxide, ozone and peracrine (peraclean, manufactured by Degussa AG, Germany) Can be used.

One or more ballast tanks 151 are installed in the hull 101 forming the substructure of the FPSO 100, and store and deballast ballast water.

When the ballast water is ballasted or deballasted, the ballast lines 130 and 230 are opened or closed using the remote control valve 400 so that the ballast water is ballasted into the ballast tank 151 or discharged. (deballast).

The active material storage container 110 may be installed in the ballast tank 151 as shown in (a) and (b) of FIG. 1, and may be installed in each of one or more ballast tanks as necessary.

The ballast water treatment apparatus according to the present invention may further include an injection device (120).

The one or more ballast tanks 151 receive seawater taken from one or more seawater inlets 150 and 250 through each of the one or more ballast lines 130 and 230 as ballast water, and the injection device 120 stores the active material. The active material stored in the container 110 is injected into each of the one or more ballast lines 130 and 230, and the injector 120 may use an eductor or a pump.

If the eductor is used as the injection device 120, a separate power source is not required for the injection of the active material, but if a pump is used, a separate power source will be required.

The ballast pumps 131 and 231 are installed at the rear ends of each of the one or more seawater inlets 150 and 250 to supply seawater to the one or more ballast tanks 151. The injector 120 uses the eductor In this case, a pressure supply is required to allow the ballast water to flow into the ballast lines 130 and 230 by the ballast pumps 131 and 231 so that the active material is sucked into the ballast lines 130 and 230.

Accordingly, the portion of the ballast lines 130 and 230 into which the active material is injected so that the active material is smoothly sucked into the ballast lines 130 and 230 by the eductor, as shown in FIG. 2, the ballast pump 131. , 231) is preferable.

If the pump is used as the injection device 120, the injection site may be anywhere, but the ballast water introduced through the seawater inlets 150 and 250 is injected into the ballast line before branching into the respective ballast tanks 151. It is preferable.

If it is injected after branching into each ballast tank, it is inefficient because the pipe for the injection of the active material is increased by that much.

The material of the ballast lines 130 and 230 may use a general steel pipe, but corrosion may occur due to the number of ballasts, and thus, corrosion may be prevented by using a reinforced glass fiber material.

The active material may be injected into a drainage line used when the ballast water is discharged from the respective ballast tanks 151 to the outside, but if the ballast water is discharged to the outside of the hull 101 by chemical treatment, The discharge of ballast water may cause secondary pollution of the ocean, so be careful.

In addition, it is possible to add a redundancy line 220 connecting each other between the ballast lines (130, 230) connected to each of the one or more ballast pumps (131, 231), by the redundancy line 220 When some of the ballast pumps are inoperative, a normal ballast pump can be used to supply the ballast water to the ballast line to which the inoperative ballast pump is connected.

The redundancy line 220 is preferably installed at the rear end of the seawater inlet and the rear end of the ballast pump so that another seawater inlet and the ballast pump can be used even if the seawater inlet and the ballast pump are inoperable.

The manifold 160 is installed in the active material storage container 110 to receive the active material from the outside of the FPSO 100 as shown in FIG. You can do that.

The active material can be supplied through the barge 190, the connection between the barge 190 and the manifold 160 with a hose 170, and operate the pump 180 to easily remove the active material from the barge 190 It can be supplied to the active material storage container (110).

Hereinafter will be described the operation of the integrated ballast water treatment device for FPSO according to the present invention.

The FPSO 100 is fixed at one place for a long time and does not always use the ballast water treatment device.

Therefore, the aquatic organisms included in the ballast water by supplying the active material in the active material storage container 110 to the ballast lines (130, 230) by operating the injection device 120 only in case of emergency or when supplying ballast water to the hull. Kills.

The active material may be loaded in advance into the FPSO 100 to go to the ocean, or may be supplied using a barge.

When the active material is supplied using the barge, the manifold 160 is installed in the active material storage container 110, and the barge 190 and the manifold 160 are connected by a hose 170 to the pump ( 180) can be supplied to the active material can be supplied safely while reducing the supply time of the active material.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention will be.

100: FPSO 101: hull
102: topside 110: active material storage container
120: injection device 130, 230: ballast line
131, 231: ballast pump 150, 250: seawater intake
151: ballast tank 160: manifold
170: hose 180: pump
190: barge 330: redundancy line
400: remote control valve

Claims

In the ballast water treatment device installed in the FPSO,
An active material storage container 110 for storing an active material capable of killing aquatic organisms contained in the ballast water; And
And at least one ballast tank 151 installed on the hull 101 of the FPSO 100 to store and discharge the ballast water.
The active material storage container 110 is installed in one or more of the one or more ballast tanks (151);
Integrated ballast water treatment device for FPSO characterized in that.

The method according to claim 1,
The one or more ballast tanks 151 may receive seawater from each of the one or more seawater inlets 150 and 250 through one or more ballast lines 130 and 230, respectively, and use the ballast water.
An injection device (120) for injecting the active material stored in the active material storage container (110) into each of the one or more ballast lines (130);
Integrated ballast water treatment device for FPSO, characterized in that it further comprises.

The method according to claim 2,
The material of the ballast lines (130, 230) is made of reinforced glass fiber;
Integral ballast water treatment device for FPSO, characterized in that.

The method according to claim 2,
One or more ballast pumps (131, 231) installed at the rear end of each of the one or more sea water inlets (150, 250) for supplying the sea water to the one or more ballast tanks (151);
The injection device 120 injects the active material into the rear end of each of the one or more ballast pumps (131, 231);
Integrated ballast water treatment device for FPSO characterized in that.

The method of claim 4,
The injection device 120 is an eductor or a pump;
Integrated ballast water treatment device for FPSO characterized in that.

The method according to claim 5,
A redundancy line 220 connecting the ballast lines 130 and 230 connected to each of the one or more ballast pumps 131 and 231;
An integrated ballast water treatment apparatus for FPSO, further comprising a.

The method of claim 6,
The redundancy line 220 is connected to the ballast line (130, 230) at the rear end of the at least one seawater inlet and at least one ballast pump (131, 231);
Integrated ballast water treatment device for FPSO characterized in that.

The method according to claim 1,
The active material storage container 110 is a capacity capable of storing two times the amount of the active material used;
Integrated ballast water treatment device for FPSO characterized in that.

The method of claim 7,
The manifold 160 for receiving the active material from the outside of the FPSO 100 is installed in the active material storage container 110;
Integrated ballast water treatment device for FPSO characterized in that.

The method according to claim 9,
A pump 180 for supplying the active material loaded on the barge 190 to the active material storage container 110;
A hose 170 for delivering the active material supplied by the pump 180;
One end of the hose 170 is connected to the manifold 160, the other end is connected to the discharge port of the pump 180 to supply the active material to the active material storage container 110;
Integrated ballast water treatment device for FPSO characterized in that.

In the ballast water treatment apparatus installed in FPSO,
Ballast lines 130 and 230 in which an active material storage container 110 for storing an active material capable of killing aquatic organisms is installed in the ballast tank 151 for storing and discharging ballast water. Injecting;
Integrated ballast water treatment device for FPSO characterized in that.

The method of claim 11,
Injecting the active material into the ballast lines (130, 230) using an eductor or a pump;
Integrated ballast water treatment device for FPSO characterized in that.