CN203810058U - Overpressure protection device for single point mooring fluid conveying system - Google Patents
Overpressure protection device for single point mooring fluid conveying system Download PDFInfo
- Publication number
- CN203810058U CN203810058U CN201420175916.6U CN201420175916U CN203810058U CN 203810058 U CN203810058 U CN 203810058U CN 201420175916 U CN201420175916 U CN 201420175916U CN 203810058 U CN203810058 U CN 203810058U
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- CN
- China
- Prior art keywords
- pressure transducer
- single point
- point mooring
- conveying system
- oil
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- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 230000001012 protector Effects 0.000 claims description 5
- 230000002463 transducing effect Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 21
- 239000010779 crude oil Substances 0.000 abstract description 7
- 230000003139 buffering effect Effects 0.000 abstract 2
- 239000000446 fuel Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Pipeline Systems (AREA)
Abstract
The utility model discloses an overpressure protection device for a single point mooring fluid conveying system. The overpressure protection device comprises pressure sensors (1 and 2), safety relief valves (3 and 4), pressure sensors (5 and 6) located on the downstream of the safety relief valves, a buffering tank (8) and a liquid level sensor (7) located in the buffering tank. When the overpressure protection device is used, triple protection is adopted, and the safety level of the single point mooring oil conveying system is improved to be higher. The pressure sensors and the liquid level sensor are used as information collecting devices and send information to a control system of the single point mooring fluid conveying system in real time. Once emergency situations are found, the oil conveying system is shut down in time, crude oil can be prevented from leaking and polluting the ocean, and heavy loss and influence are avoided.
Description
Technical field
The present invention relates to a kind of overpressure protector for the fluid transmission pipe in single point mooring system.
Background technique
Single point mooring's fluid delivery system, the fuel transfer system of whole single point mooring as shown in Figure 1, crude oil is delivered to oil tanker (also can be reverse) from land oil depot, is mainly divided into following several part:
Submerged pipeline 15, connects land oil depot;
Seabed manifold platform 12, comprises seabed ball valve 13 and 14 and corresponding pipeline on it;
Sea risers 16 is a kind of flexible hoses;
Floating drum 11, overpressure protection system is arranged on its inside conventionally;
Flotation hose 17, connects oil transportation terminal oil tanker 18.
Wherein, main pipeline has 2, is respectively main pipeline 19 and main pipeline 20, is mainly used in transmitting former wet goods liquid; Branch pipe(tube), by 2, is respectively branch pipe(tube) 21 and branch pipe(tube) 22, is positioned at being mainly used in the former wet goods fluid discharge of main pipeline 19 and 20 to knock out drum 8 the insides of floating drum 11.
In single point mooring system, fluid delivery system is topmost part, and it moves very important safely and efficiently.In order to prevent meeting accident in the process of oil transportation, such as the delivery pressure change suddenly of rear pump is large, certain valve in pipe-line system such as closes suddenly at the situation, the superpressure of controlling methodology of oil pipeline is caused in capital, can some sensing unit in pipe-line system be caused damage or be destroyed, and then can cause fluid leakage, Marine Pollution, causes great loss and impact.
At present, while carrying out oil transportation operation in single point mooring system, be generally that requirement operator will carry out in strict accordance with operation manual, and regularly patrol and examine, once there is urgency, need operator to interrupt in time oil transportation operation.But when there is urgency, operator are often difficult to find in advance in time also early warning, this is urgent problem.
Summary of the invention
The invention provides a kind of device of safe and reliable fluid line overpressure protection.
In order to achieve the above object, the invention provides a kind of overpressure protector for single point mooring's fluid delivery system, be installed in floating drum, comprise two main pipelines, connected separately the sea risers being communicated with submerged pipeline and the flexible pipe being communicated with oil tanker.Described main pipeline arranges respectively the first pressure transducer and the second pressure transducer; Described main pipeline is also communicated to knock out drum by being provided with separately the branch pipe(tube) of safety relief valve respectively; The 3rd pressure transducer and the 4th pressure transducer are set respectively on two described branch pipe(tube)s; Described knock out drum inside is provided with liquid level sensor, and outside has connected oil exit pipe and air outlet valve air exhaust duct is set.Described the first pressure transducer, the second pressure transducer, the 3rd pressure transducer, the 4th pressure transducer, and the ball valve that liquid level sensor passes through separately is respectively connected with oil circuit.In addition, described the first pressure transducer, the second pressure transducer, the 3rd pressure transducer, the 4th pressure transducer, and the 5th sensor is delivered to control system by transducing signal respectively.Described control system is transducing signal and default threshold value comparison, for controlling, closes the seabed ball valve that seabed manifold platform and described sea risers arrange on connecting pipe respectively.
The triple protection that overpressure protection system of the present invention is included, is mainly to have adopted pressure transducer and liquid level sensor as the collecting device of information, and information is communicated with the control system of single point mooring in real time.Once discovery urgency, can close fuel transfer system in time, avoids producing original leaking, Marine Pollution, causes great loss and impact.The present invention rises to a higher level by the safety class of single point mooring's fuel transfer system.
Accompanying drawing explanation
Fig. 1 is system principle schematic diagram of the present invention.
Embodiment
As shown in Figure 1, be the fuel transfer system schematic diagram of whole single point mooring, crude oil is delivered to oil tanker (also can be reverse) from land oil depot, is mainly divided into following several part:
Submerged pipeline 15, connects land oil depot;
Seabed manifold platform 12, comprises seabed ball valve 13 and 14 and corresponding pipeline on it;
Sea risers 16 is a kind of flexible hoses;
Floating drum 11, whole overpressure protection system is arranged on its inside;
Flotation hose 17, connects oil transportation terminal oil tanker 18.
In figure, main pipeline has 2, is respectively main pipeline 19 and main pipeline 20, is mainly used in transmitting former wet goods liquid; Branch pipe(tube), by 2, is respectively branch pipe(tube) 21 and branch pipe(tube) 22, is positioned at being mainly used in the former wet goods fluid discharge of main pipeline 19 and 20 to knock out drum 8 the insides of floating drum 11;
Each sensor is equipped with a ball valve, and effect is that crude oil and sensor are separated.For example, pressure transducer 1 can be equipped with a ball valve 23 above, when needs are safeguarded or changed pressure transducer 1, closes ball valve 23, and crude oil and sensor are separated.
The present invention, for the overpressure protector of the fluid transmission pipe in single point mooring system, comprises pressure transducer 1 and 2; Safety relief valve 3 and 4, with and pressure transducer 5 and 6, the knock out drum 8 in downstream, and be positioned at its inner liquid level sensor 7.Wherein, knock out drum 8 outsides have connected oil exit pipe 10 and air outlet valve 9 air exhaust duct have been set; Once enter crude oil in knock out drum 8, its inner air just need to be by air outlet valve (9) by Bas Discharged.Finally use oil exit pipe (10), the crude oil in knock out drum (8) is extracted out completely, be discharged in the working boat cargo tank of appointment.
Predefined position at fluid transmission pipe; various sensors are installed, and safety relief valve etc., when automatically detecting pipe fluid pressure value and meeting or exceeding the force value of setting; this overpressure protection system will start, and fluid is discharged in the knock out drum of appointment by safety relief valve.
This overpressure protection system is divided into triple safe protection.
The first weight, is positioned at the pressure transducer 1 and 2 on main pipeline 19 and 20.Hydrodynamic pressure in main pipeline is higher than routine operating pressure 2barg(kg/cm2) time, this pressure transducer can be by the control system of single point mooring system, seabed ball valve 13 and 14 are closed in triggering, stop fluid to continue to carry forward, reduce the pipeline pressure of single point mooring system.
The second weight, is positioned at the safety relief valve 3 and 4 on branch pipe(tube) 21 and 22, also comprises the pressure transducer 5 and 6 that is positioned at this safety relief valve downstream.When first after heavily protection was lost efficacy, the hydrodynamic pressure in main pipeline continues to raise, and during higher than routine operating pressure 5barg, safety relief valve 3 and 4 is opened in succession, release fluids.Simultaneously, the pressure transducer 5 and 6 that is positioned at this safety relief valve downstream can detect hydrodynamic pressure, and can, by the control system of single point mooring system, trigger and close seabed ball valve 13 and 14, stop fluid to continue to carry forward, reduce the pipeline pressure of single point mooring system.
Is triple, are positioned at the liquid level sensor 7 of knock out drum 8.After first heavy and the second heavy protection was lost efficacy, trigger and close the pressure transducer 1,2,5 and 6 that seabed ball valve 13 and 14 closes and lost efficacy, fluid continues to carry forward by safety relief valve 3 and 4, in injection knock out drum 8.Fluid volume in knock out drum 8 reaches 5m
3time, its inner liquid level sensor 7 will detect signal, can be triggered and be closed seabed ball valve 13 and 14 by the control system of single point mooring system, stops fluid to continue to carry forward, reduces the pipeline pressure of single point mooring system.
The present invention is when fuel transfer system superpressure, and first pressure transducer 1 and 2, as the first heavy protective gear, can send signal, by the control system of single point mooring, triggers and closes seabed ball valve 13 and 14, closes fuel transfer system; After inefficacy, the second heavy protective gear starts, and safety relief valve 3 and 4 is opened in succession, and the pressure transducer 3 and 4 in its downstream sends signal, by the control system of single point mooring, triggers and closes seabed ball valve 13 and 14, closes fuel transfer system; After the second heavy protective gear also lost efficacy, the liquid level sensor 7 that is positioned at knock out drum 8 inside can send signal under certain condition, by the control system of single point mooring, triggers and closes seabed ball valve 13 and 14, closes fuel transfer system.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technological scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (1)
1. the overpressure protector for single point mooring's fluid delivery system, it is characterized in that, be installed in floating drum (11), comprise two main pipelines, connected separately the sea risers (16) being communicated with submerged pipeline and the flexible pipe (17) being communicated with oil tanker (18);
Described main pipeline arranges respectively the first pressure transducer (1) and the second pressure transducer (2);
Described main pipeline is also communicated to knock out drum (8) by being provided with separately the branch pipe(tube) of safety relief valve respectively; The 3rd pressure transducer (5) and the 4th pressure transducer (6) are set respectively on two described branch pipe(tube)s;
Described knock out drum (8) inside is provided with liquid level sensor (7), and outside has connected oil exit pipe (10) and air outlet valve (9) air exhaust duct is set;
Described the first pressure transducer (1), the second pressure transducer (2), the 3rd pressure transducer (5), the 4th pressure transducer (6), and the ball valve (23) that liquid level sensor (7) passes through separately is respectively connected with oil circuit;
In addition, described the first pressure transducer (1), the second pressure transducer (2), the 3rd pressure transducer (5), the 4th pressure transducer (6), and the 5th sensor (7) delivers to control system by transducing signal respectively,
Described control system is transducing signal and default threshold value comparison, for controlling, closes the seabed ball valve that seabed manifold platform (12) and described sea risers (16) arrange on connecting pipe respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175916.6U CN203810058U (en) | 2014-04-11 | 2014-04-11 | Overpressure protection device for single point mooring fluid conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175916.6U CN203810058U (en) | 2014-04-11 | 2014-04-11 | Overpressure protection device for single point mooring fluid conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203810058U true CN203810058U (en) | 2014-09-03 |
Family
ID=51448806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420175916.6U Expired - Lifetime CN203810058U (en) | 2014-04-11 | 2014-04-11 | Overpressure protection device for single point mooring fluid conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203810058U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193177A (en) * | 2016-07-29 | 2016-12-07 | 中国船舶重工集团公司第七〇九研究所 | A kind of water conveying system for mild steel arm single point mooring unit |
| CN107218513A (en) * | 2017-06-01 | 2017-09-29 | 武汉船用机械有限责任公司 | A kind of rotatory sealing monitoring system |
-
2014
- 2014-04-11 CN CN201420175916.6U patent/CN203810058U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193177A (en) * | 2016-07-29 | 2016-12-07 | 中国船舶重工集团公司第七〇九研究所 | A kind of water conveying system for mild steel arm single point mooring unit |
| CN107218513A (en) * | 2017-06-01 | 2017-09-29 | 武汉船用机械有限责任公司 | A kind of rotatory sealing monitoring system |
| CN107218513B (en) * | 2017-06-01 | 2019-07-26 | 武汉船用机械有限责任公司 | A kind of rotatory sealing monitoring system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
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| CX01 | Expiry of patent term |