KR101193306B1 - Method for cleaning a pipeline using cleaning system - Google Patents
Method for cleaning a pipeline using cleaning system Download PDFInfo
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- KR101193306B1 KR101193306B1 KR20100069062A KR20100069062A KR101193306B1 KR 101193306 B1 KR101193306 B1 KR 101193306B1 KR 20100069062 A KR20100069062 A KR 20100069062A KR 20100069062 A KR20100069062 A KR 20100069062A KR 101193306 B1 KR101193306 B1 KR 101193306B1
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- pig
- pipe
- compressed air
- fluid
- washing
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
Abstract
In the present invention, one end is located on the seabed, the other end in the subsea pipe washing apparatus for washing the pipe to be washed connected to the land, buoyancy unit is installed to float on the sea, connected to the other end of the pipe to be cleaned. It is installed, the inside of the pig input section, the pig input section is provided with the pig injected into the pipe to be cleaned, the cleaning fluid supply unit, buoyancy part to supply the cleaning fluid to be used for the cleaning of the pipe to be cleaned inside the pig input section And connected to one end of the pipe to be cleaned and the pig input to the other end of the pipe to be cleaned through one end of the pipe to be cleaned or to the other end of the pipe to be cleaned through the inside of the pig input pipe while being installed on the ground, respectively. With the first and second compressed air supply unit, buoyancy unit and land installed to push the inner pig and the cleaning fluid to be cleaned while reciprocating the inside of the pipe to be cleaned. First and second fluid storage parts connected to one end of the pipe to be cleaned and the pig input portion, and receives and stores the fluid discharged through one end of the pipe to be cleaned or the other end of the pipe to be cleaned by the movement of the pig And a gas discharge part installed in the buoyancy part and venting and drying the pipe to be cleaned while suctioning and discharging the gas inside the pipe to be cleaned while the pigs are reciprocated by the first and second compressed air supply parts, and the first compression. The air supply unit, the gas discharge unit, the first fluid storage unit provides a subsea pipe washing apparatus including a connection line to be connected to one end of the pipe to be cleaned.
Description
The present invention relates to a subsea pipe washing apparatus and a washing method using the same, and to a subsea pipe washing apparatus for washing the inside of the portion located in the seabed of the pipe for transferring crude oil to the land and a cleaning method using the same.
In general, pipes for various uses for transferring fluids generate foreign substances such as scales or slimes generated on the inner wall of the pipes due to the fluid flowing therein as they are used for a long time. Therefore, the ductile scale or slime generated in the pipe prevents the fluid transfer inside the pipe and contaminates the fluid or corrodes the pipe, causing water leakage and reducing the life of the pipe. It will require cleaning.
In such a pipe washing method, a brush is inserted, a chemical agent or organic acid having strong dissolving power, or a method of spraying high pressure water, sand or ultrasonic waves is used. However, such a conventional pipe washing method is difficult to apply when the length is long while being located on the sea floor like crude oil pipe, and there is a fear that the old pipe may cause damage to the pipe itself.
An object of the present invention is to provide a subsea pipe washing apparatus and a cleaning method using the same, which can easily clean a long length of pipe in a state installed on the sea bed.
The present invention, in the subsea pipe washing apparatus for washing the pipe to be washed to the other end connected to the land while the other end is located on the seabed, buoyancy unit installed to float on the sea, and the other end of the pipe to be cleaned It is connected to the inside, the pig input unit is provided with a pig which is introduced into the washing target pipe inside, the pig input is connected to the pig injection unit, supplying the cleaning fluid to be used for cleaning the washing target pipe into the pig input unit Is connected to the cleaning fluid supply unit, the buoyancy portion and the land, respectively, one end of the pipe to be washed and the pig injection portion, one end of the pipe to be washed or the pig through the inside of the pig injection portion While supplying compressed air to the other end of the target pipe, the inside of the pig injection section pushes the pig and the cleaning fluid to reciprocate the inside of the pipe to be cleaned The first and second compressed air supply unit to be washed while moving, and connected to one end of the pipe to be cleaned and the pig input portion in the state of being installed on the buoyancy portion and the land, the object to be washed by the movement of the pig First and second fluid storage unit for receiving and storing the fluid discharged through one end of the pipe or the other end of the pipe to be cleaned, and is installed in the buoyancy portion, by the first and second compressed air supply A gas discharge unit for ventilating and drying the cleaning target pipe while suctioning and discharging the gas inside the cleaning target pipe while the pig is reciprocated, and the first compressed air supply unit, the gas discharge unit, and the first fluid storage unit. It provides a subsea pipe washing apparatus including a connection line to be connected to one end of the pipe to be cleaned.
In addition, according to another aspect of the present invention, in the washing method using the subsea pipe cleaning device for washing the pipe to be washed connected to the ground while the other end is located on the seabed, the buoyancy portion floating on the sea The first compressed air supply unit, the gas discharge unit and the first fluid storage unit is connected to one end of the pipe to be cleaned by a connecting line, and the other end of the pipe to be washed is connected to the pig injection unit in the state of coupling fluid Connecting and installing a supply unit, a second compressed air supply unit, and a second fluid storage unit, and after the pig is injected into the pig input unit, the pigs are washed by the second compressed air supply unit and the first compressed air supply unit. While discharging the fluid inside the pipe to be cleaned to the first fluid storage part and the second fluid storage part while reciprocating the pipe and the pig input part. After the pig, the first washing fluid and the third washing fluid are put into the pig feeding portion, the first washing fluid is connected to the pipe to be cleaned by the second compressed air supply part and the first compressed air supply part. Washing while reciprocating and putting the pig and the second washing fluid into the pig input portion, the second washing fluid by the second compressed air supply unit and the first compressed air supply unit the pipe to be cleaned Washing while reciprocating, and after the pig and the third washing fluid is put into the pig feeding portion, the third washing fluid by the second compressed air supply unit and the first compressed air supply unit the pipe to be cleaned. Washing while reciprocating, and after putting the pig into the pig input unit, the pig by the second compressed air supply unit and the first compressed air supply unit is the pipe to be washed and the pig two Discharging and removing residual fluid inside the cleaning target pipe to the first fluid storage unit and the second fluid storage unit while reciprocating the unit, and supplying dry air to the inside through the other end of the cleaning pipe; The drying air is discharged to the outside while passing through the inside of the washing target pipe by the gas discharge unit, and provides a washing method using a subsea pipe washing apparatus comprising drying and ventilating the inside of the washing target pipe.
In the subsea pipe washing apparatus according to the present invention, the washing fluid supplied from the pig and the washing fluid supply by the first compressed air supply unit and the second compressed air supply unit is washed while reciprocating the inside of the pipe to be cleaned, installed on the seabed The long length of pipe in the state can be easily performed cleaning.
In addition, the washing method using the subsea pipe washing apparatus according to the present invention, after removing the fluid by the reciprocating movement of the pig by the first compressed air supply unit and the second compressed air supply unit, the pig and the cleaning fluid is again inside the pipe to be cleaned After being sequentially washed while reciprocating, the ventilation and drying are performed by the drying air, so that a long length of pipe can be easily washed while being installed on the sea floor.
1 is a schematic configuration diagram of a subsea pipe washing apparatus according to an embodiment of the present invention.
FIG. 2 is a detailed configuration diagram of FIG. 1.
Figure 3 is a flow chart of the washing method using a subsea pipe washing apparatus according to an embodiment of the present invention.
4 and 5 are state diagrams illustrating step S2 of FIG. 3.
6 to 14 are state diagrams illustrating step S3 of FIG. 3.
15 to 18 are state diagrams illustrating step S4 of FIG. 3.
19 to 22 are state diagrams illustrating step S5 of FIG. 3.
23 and 24 are state diagrams illustrating step S6 of FIG. 3.
FIG. 25 is a state diagram illustrating step S7 of FIG. 3.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.
1 is a schematic configuration diagram of a subsea pipe washing apparatus according to an embodiment of the present invention, Figure 2 is a detailed configuration diagram of FIG. 1 and 2, the subsea pipe cleaning device,
The
The
The
The
The
The washing
The washing
The washing
Whether the first opening /
The first compressed
Here, the first compressed
The
The first compressed
The first opening /
The second compressed
The
The second compressed
The second open /
As such, the compressed air generated by the second compressed
The first
Here, the first
The first
The first
The fourth opening /
The second
The second
The second
The fifth opening /
The
The
The exhaust
The sixth opening /
Such, the
The
The
The seventh open /
As such, the apparatus for cleaning the seabed pipe according to the embodiment may be formed by the first compressed
1 to 25, the process of washing using the subsea pipe washing apparatus according to an embodiment of the present invention will be described in detail.
Figure 3 is a flow chart showing a washing method using a subsea pipe washing apparatus according to an embodiment of the present invention. Referring to FIG. 3, the washing method using the subsea pipe washing apparatus includes a
First, in the state where one end is located on the seabed, the other end is on the
The other end of the
Then, the step of removing the fluid inside the
As such, the fluid discharged to the
Thereafter, the
In this way, the fluid discharged to the
As such, when the fluid inside the cleaning
Thereafter, as shown in FIG. 8, in the washing
Then, as shown in FIG. 9, the
Subsequently, as shown in FIG. 10, in the washing
Then, as shown in FIG. 11, the
In addition, as shown in FIG. 12, in the washing
When the
Then, as shown in Figure 14, by operating the
As such, when the inside of the
Thereafter, as shown in FIG. 17, in the washing
As such, when the
When the inside of the
Thereafter, as shown in FIG. 21, in the washing
As such, when the
When the washing of the
As such, the fluid discharged to the
Thereafter, the
In this way, the fluid discharged to the
When the discharge of the residual fluid in the
As such, the washing method using the subsea pipe cleaning apparatus according to an embodiment, by the reciprocating movement of the
While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.
10: pipe to be cleaned 20: pig
100: buoyancy portion 200: pig injection portion
210: temporary piping 220: launch pad
230: pig sensor 300: cleaning fluid supply unit
310: washing fluid storage tank 320: washing fluid connector
330: first open and close valve 400: first compressed air supply unit
410: first compressor 420: first compressed air connector
430: second open and close valve 500: second compressed air supply unit
510: second compressor 520: second compressed air connector
530: the third open and close valve 600: the first fluid storage unit
610: first fluid reservoir 620: first fluid connector
630: fourth open and close valve 700: second fluid storage unit
710: second fluid reservoir 720: second fluid connector
730: fifth opening and closing valve 800: gas discharge portion
810: blower 820: exhaust gas connector
830: sixth opening and closing valve 840: air dryer
Claims (22)
The first compressed air supply unit and the gas discharge unit and the first fluid storage unit on the buoyancy floating on the sea is connected to one end of the pipe to be cleaned by a connecting line, and the other end of the pipe to be washed with the pig input connected Connecting and installing a washing fluid supply part, a second compressed air supply part, and a second fluid storage part to the pig input part;
After the pig is introduced into the pig input unit, the second compressed air supply unit and the first compressed air supply unit reciprocate the cleaning pipe and the pig injection unit by the second reciprocating movement of the fluid inside the cleaning target pipe while the first Discharging and removing the first fluid storage unit and the second fluid storage unit;
After the pig, the first washing fluid and the third washing fluid are put into the pig feeding portion, the first washing fluid reciprocates the pipe to be cleaned by the second compressed air supply part and the first compressed air supply part. Washing;
Injecting the pig and the second washing fluid into the pig feeding unit, and then washing the second washing fluid by reciprocating the cleaning target pipe by the second compressed air supply unit and the first compressed air supply unit;
Injecting the pig and the third washing fluid into the pig feeding part, and then washing the third washing fluid by reciprocating the washing target pipe by the second compressed air supply unit and the first compressed air supply unit;
After the pig is introduced into the pig input unit, the second compressed air supply unit and the first compressed air supply unit reciprocate the washing pipe and the pig injection unit by the second compressed air supply unit, and the remaining fluid inside the pipe to be cleaned Discharging and removing the first fluid storage unit and the second fluid storage unit; And,
After supplying dry air to the inside through the other end of the pipe to be cleaned, the dry air is discharged to the outside while passing through the inside of the pipe to be washed by the gas discharge, the drying and ventilation inside the pipe to be cleaned Washing method using a subsea pipe washing device comprising the step of.
The first washing fluid is a mixture of kerosene and cocosol, the second washing fluid is a fluid mixed with a degreasing agent in sea water, and the third washing fluid is an industrial water cleaning method using a subsea pipe cleaning device.
The pig feeder, and has a temporary pipe and the launch pad of the tubular shape is provided with a feed hole for the pig to feed,
Coupling the pig input unit to the other end of the pipe to be washed,
Connecting and coupling one end of the hypothesis pipe to the other end of the pipe to be cleaned;
Washing method using a subsea pipe cleaning device comprising the step of coupling the launch pad to the other end of the temporary pipe.
Discharging and removing the fluid inside the pipe to be washed to the first fluid storage unit and the second fluid storage unit,
Injecting a first pig into the pig feeder;
Supplying compressed air from the second compressed air supply unit to the pig input unit, and discharging the fluid inside the pipe to be cleaned to the connection line while moving the first pig to the other end of the pipe to be cleaned; Wow,
Moving the fluid discharged through the connection line to the first fluid storage part;
The compressed air supply unit supplies compressed air to the washing target pipe, and discharges the fluid inside the washing target pipe to the pig input part while moving the first pig from one end of the washing target pipe to the other end. Steps,
The fluid discharged to the pig injection unit is a cleaning method using a subsea pipe cleaning device comprising the step of moving to the second fluid storage.
Washing the first washing fluid while reciprocating the pipe to be washed,
Injecting a second pig into the pig feeder;
Supplying compressed air from the second compressed air supply unit to the pig feeding unit to move the second pig in the pig feeding unit in a predetermined distance in the direction of the pipe to be cleaned;
Injecting a third pig into the pig feeder;
Supplying compressed air from the second compressed air supply unit to the pig input unit to move the third pig in a direction of the pipe to be cleaned so as to be spaced apart from the second pig in the pig input unit; ,
Supplying the third washing fluid to the pig feeding part so that the third washing fluid is located between the second and third pigs in the washing fluid supplying part;
Supplying compressed air from the second compressed air supply unit to the pig input unit to move the second pig, the third pig and the third washing fluid to the pipe to be cleaned;
Injecting a fourth pig into the pig feeder;
Supplying compressed air from the second compressed air supply unit to the pig feeding unit to move the fourth pig in the pig feeding unit to be spaced apart from the third pig in a predetermined distance in the direction of the pipe to be cleaned; ,
Supplying the first washing fluid to the pig feeding part so that the first washing fluid is positioned between the third and fourth pigs in the washing fluid supplying part;
Supplying compressed air from the second compressed air supply unit to the pig feeding unit to move the fourth and first washing fluids in the direction of the pipe to be washed adjacent to the third pig;
Injecting a fifth pig into the pig feeder;
Supplying compressed air from the second compressed air supply unit to the pig input unit to move the fifth pig body a predetermined distance in the direction of the pipe to be cleaned so as to be spaced apart from the fourth pig in the pig input unit; ,
Supplying the first washing fluid to the pig feeding part so that the third washing fluid is located between the fourth and fifth pigs in the washing fluid supplying part;
Supplying compressed air from the second compressed air supply unit to the pig input unit, and moving the second to fifth pigs and the third and first washing fluids to one end of the pipe to be cleaned;
When the second pig reaches one end of the pipe to be cleaned, the third washing fluid is discharged and stored to the first fluid storage unit through the connection line by the compressed air applied from the second compressed air supply unit. Wow,
Supplying compressed air from the first compressed air supply unit to the pipe to be cleaned and moving the second to fifth and first washing fluids to the pig input unit;
And the first washing fluid is discharged and stored in the second fluid storage part when the fifth pig reaches the end of the pig feeding part.
Washing the second washing fluid while reciprocating the pipe to be washed,
Injecting a sixth pig into the pig feeder;
Supplying compressed air from the second compressed air supply unit to the pig feeding unit to move the sixth pig in the pig feeding unit a predetermined distance in the direction of the pipe to be cleaned;
Injecting a seventh pig into the pig feeding portion;
Supplying compressed air from the second compressed air supply unit to the pig input unit, and moving the seventh pig in the pig input unit to be spaced apart from the sixth pig in the pig input unit by a predetermined distance; ,
Supplying the second washing fluid to the pig feeding part so that the second washing fluid is located between the sixth and seventh pigs in the washing fluid supplying part;
Supplying compressed air from the second compressed air supply unit to the pig input unit to move the sixth pig, the seventh pig and the second washing fluid to one end of the pipe to be cleaned;
When the sixth pig reaches the end of the pipe to be cleaned, the first compressed air supply unit supplies compressed air to the pipe to be cleaned, thereby supplying the sixth pig, the seventh pig and the second washing fluid. Moving to the pig injection section;
And when the seventh pig reaches the end of the pig feeder, the second washing fluid is discharged and stored into the second fluid storage unit.
Washing the third washing fluid while reciprocating the pipe to be washed,
Injecting an eighth pig into the pig feeder;
Supplying compressed air from the second compressed air supply unit to the pig input unit to move the eighth pig in the pig input unit within a certain distance in the direction of the pipe to be cleaned;
Injecting a ninth pig into the pig feeding portion;
Supplying compressed air from the second compressed air supply unit to the pig feeding unit to move the ninth pig in the pig feeding unit at a predetermined distance in the direction of the pipe to be cleaned so as to be spaced apart from the eighth pig; ,
Supplying the third washing fluid to the pig feeding part so that the second washing fluid is positioned between the eighth and ninth pigs in the washing fluid supplying part;
Supplying compressed air from the second compressed air supply unit to the pig feeding unit to move the eighth pig, the ninth pig and the third washing fluid to one end of the pipe to be cleaned;
When the eighth pig reaches one end of the pipe to be cleaned, the first compressed air supply unit supplies compressed air to the pipe to be cleaned, thereby providing the eighth pig, the ninth pig, and the third washing fluid. Moving to the pig injection section;
And when the ninth pig reaches the end of the pig feeder, the third washing fluid is discharged and stored into the second fluid storage unit.
Discharging and removing the residual fluid in the washing target pipe to the first fluid storage unit and the second fluid storage unit,
Injecting a tenth pig into the pig feeding portion;
Supplying compressed air from the second compressed air supply unit to the pig input unit, and discharging the fluid inside the washing target pipe to the connection line while moving the tenth pig to the other end of the washing target pipe; Wow,
Moving the fluid discharged through the connection line to the first fluid storage part;
The compressed air supply unit supplies the compressed air to the pipe to be cleaned, and discharges the fluid inside the pipe to be cleaned to the pig input while moving the tenth pig to the other end of the pipe to be cleaned. Steps,
The fluid discharged to the pig injection unit is a cleaning method using a subsea pipe cleaning device comprising the step of moving to the second fluid storage.
The gas discharge unit is provided with a blower connected to the pipe to be cleaned in the state installed in the buoyancy, and an air dryer connected to the other end of the pipe to be cleaned in the state installed on the land,
Drying and ventilating the inside of the pipe to be cleaned includes:
Generating a dry body in the air dryer and supplying the inside of the pipe to be cleaned;
Generating a suction force in the blower, the washing method using a subsea pipe cleaning device comprising the step of sucking and discharging the gas inside the washing target pipe.
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KR20100069062A KR101193306B1 (en) | 2010-07-16 | 2010-07-16 | Method for cleaning a pipeline using cleaning system |
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KR20100069062A KR101193306B1 (en) | 2010-07-16 | 2010-07-16 | Method for cleaning a pipeline using cleaning system |
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KR101193306B1 true KR101193306B1 (en) | 2012-10-19 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20190078073A (en) | 2017-12-26 | 2019-07-04 | 민경원 | Pipe cleaning method using shock wave |
KR20200109169A (en) | 2019-03-12 | 2020-09-22 | 대우조선해양 주식회사 | Apparatus and Method for oil flushing based on dry ice pigging |
WO2022119113A1 (en) * | 2020-12-01 | 2022-06-09 | (주) 테크윈 | Pipe pigging system for cleaning and controlling speed of pig |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101465781B1 (en) * | 2013-01-25 | 2014-11-27 | 삼성중공업 주식회사 | Pipeline cleaning system |
-
2010
- 2010-07-16 KR KR20100069062A patent/KR101193306B1/en active IP Right Grant
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190078073A (en) | 2017-12-26 | 2019-07-04 | 민경원 | Pipe cleaning method using shock wave |
KR20200109169A (en) | 2019-03-12 | 2020-09-22 | 대우조선해양 주식회사 | Apparatus and Method for oil flushing based on dry ice pigging |
WO2022119113A1 (en) * | 2020-12-01 | 2022-06-09 | (주) 테크윈 | Pipe pigging system for cleaning and controlling speed of pig |
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KR20120008286A (en) | 2012-01-30 |
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