CN106586318A - Closed FPSO petroleum tank inhalation-exhalation system - Google Patents
Closed FPSO petroleum tank inhalation-exhalation system Download PDFInfo
- Publication number
- CN106586318A CN106586318A CN201611254241.4A CN201611254241A CN106586318A CN 106586318 A CN106586318 A CN 106586318A CN 201611254241 A CN201611254241 A CN 201611254241A CN 106586318 A CN106586318 A CN 106586318A
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- CN
- China
- Prior art keywords
- cargo tank
- pressure
- gas
- fpso
- relief valve
- Prior art date
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/30—Recovery of escaped vapours
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a closed FPSO petroleum tank inhalation-exhalation system. The closed FPSO petroleum tank inhalation-exhalation system comprises a petroleum tank, wherein the petroleum tank is connected to a gas recovery system, a natural gas inlet system and a first-stage venting system through a first communication header, connected to a second-stage venting system through a second communication header, and connected to an inert gas generator through a third communication header; and the gas recovery system is connected to the first communication header through a switch valve, and comprises a vent gas cooler and a vent gas scrubber which are sequentially connected. The closed petroleum tank inhalation-exhalation system is established according to the technical scheme provided by the embodiment of the invention; pressure stabilization is carried out by virtue of a combustible gas during output working, that is, inhalation, of the petroleum tank, thus the stability of a pressure in the petroleum tank and the safety of the petroleum tank are ensured; the combustible gas in the petroleum tank is recovered during petroleum input, that is, exhalation, of the petroleum tank, thus energy can be saved, pollution can be reduced, and no gathering of the combustible gas in the upper part of a hull deck and a production device area can also be ensured.
Description
Technical field
The disclosure relates generally to FPSO fields, more particularly to FPSO cargo tank rebreathers.
Background technology
FPSO (Floating Production oil storage drainage device, floating production storage＆offloading
Unit it is) that Oil-gas Separation is carried out to the oil exploited, oil-polluted water, dynamic power, heat supply, the storage of crude oil products and fortune is processed
It is defeated, integrate the comprehensive Large marine Petroleum Production base that personnel live with the chain of command in production.
FPSO liquid levels in cargo tank oil-feed gradually rise, and the gas compartment can be compressed, while the part light component in crude oil
Also can evaporate when cabin is entered and become gas, cause cargo tank pressure gradually rise.In order to ensure cargo tank pressure balance, need
Unnecessary gas is breathed out, prior art is all to pool together the blow-down pipe of all cargo tanks, is arranged above deck
One emptying tower, fuel gas is discharged by being vented tower.This open respiratory system is had in respiratory in a large number
Fuel gas be carried over, these fuel gas diffusion can bring potential fire or explosion danger near the process units,
Also atmospheric environment can be damaged, while can also cause certain economic loss.
When cargo tank carries out outer defeated operation, cargo tank pressure can be drastically reduced, in order to ensure that pressure stability needs inspiration in cabin
Substantial amounts of gas carries out voltage stabilizing.Generally use at present the flue gas that produced with gas fired-boiler or that inert gas generator is produced is lazy
Gas is supplemented in cabin to balance pressure.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, expect to provide a kind of FPSO cargo tanks rebreather.
On the one hand, there is provided a kind of FPSO cargo tanks rebreather, including cargo tank, the cargo tank is by the first connection header
Gas recovery system, natural gas gas handling system and one-level blowdown system are connected to, the cargo tank is by the second connection header connection
To two grades of blowdown systems, inert gas generator is connected to by third connecting header；
The gas recovery system is connected to the first connection header by switch valve, and the gas recovery system is included sequentially
The emptying Gas Cooler of connection and scrubber of dropping a hint, the scrubber two ends of dropping a hint are respectively connecting to compressor and recovery
Pump.
According to the technical scheme that the embodiment of the present application is provided, a set of enclosed cargo tank respiratory system is established, it is outer defeated in cargo tank
Voltage stabilizing is carried out using fuel gas when operation is air-breathing, and the pressure in cargo tank is supplemented using a plurality of pipeline, it is ensured that
In cargo tank, the safety of the stable and cargo tank of pressure, when cargo tank oil-feed is exhaled, the fuel gas in cargo tank is reclaimed,
Both can be reduced with energy saving and be polluted, while also can guarantee that deck in ship structure top and process units region do not have fuel gas to gather
Collection, it is ensured that the safety of hull work.
Description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is FPSO cargo tank rebreather structural representations in the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples the application is described in further detail.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that, in order to
It is easy to description, in accompanying drawing, illustrate only the part related to invention.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combine.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the application in detail.
Fig. 1 is refer to, the embodiment of the present invention provides a kind of FPSO cargo tanks rebreather, including cargo tank 1, the cargo tank
1 is connected to gas recovery system, natural gas gas handling system and one-level blowdown system by the first connection header 16, and the cargo tank leads to
Cross the second connection header 17 and be connected to two grades of blowdown systems, inert gas generator 4 is connected to by third connecting header 18；
The gas recovery system is connected to the first connection header 16 by switch valve 2, and the gas recovery system includes
The emptying Gas Cooler 11 being sequentially connected with and scrubber 12 of dropping a hint, 12 two ends of scrubber of dropping a hint are respectively connecting to compression
Machine 14 and recovery pump 13.
Cargo tank rebreather provided in an embodiment of the present invention is connected to gas by the first connection header 16 and reclaims system
System, in cargo tank oil-feed, cargo tank die-casting is raised, and the cargo tank rebreather enters expiratory mode, switch of now exhaling
Valve 10 is opened, and air-breathing switch valve 9, noble gas switch valve 5 are closed, and the fuel gas evaporated in cargo tank is entered by expiration switch valve
Enter gas recovery system, be firstly transferred to emptying Gas Cooler 11 and cooled down, then passing through scrubber of dropping a hint carries out gas-liquid
Separate, the recovered pump of liquid is recycled to lime set technology processing system, and gas is delivered to natural gas processing system through compressor boost
System is further processed；If compressor or other equipment for linking to gas recovery system are in inspecting state, or
Person is because when equipment state causes compressor run, cargo tank pressure can gradually rise, and in order to ensure the safety of system, work as pressure
When power reaches a certain setting value, one-level blowdown system can be turned on, and the gas evaporated in cargo tank is arranged by one-level blowdown system
It is put in air；If one-level blowdown system goes wrong, cargo tank pressure is persistently raised, and two grades of blowdown systems can be turned on, by this
Two grades of blowdown systems are discharged into gas in air, it is ensured that cargo tank pressure stability；
When cargo tank carries out outer defeated operation, the pressure in cargo tank is gradually lowered, and the cargo tank rebreather enters air-breathing
Pattern, now expiration switch valve 10 close, air-breathing switch valve 9 is opened, system from natural gas process system supplement fuel gas enter
Cargo tank, stable cargo tank pressure；If fuel gas is supplemented and gone wrong, inert gas generator is started working, and noble gas switch valve 5 is opened
The noble gas of generation is supplemented in into cargo tank balance pressure；If inert gas generator breaks down, cargo tank pressure is gradually lowered, pressure release
8 reverse opening of valve, from one-level emptying standpipe supplements air and enters cargo tank steady pressure；If pressure relief valve 8 and one-level emptying
System malfunctions, or one-level emptying standpipe can not supplement enough air and enter cargo tank, then vacuum pressure relief valve 3 is reverse
Open, air is sucked from two grades of emptying standpipes, cargo tank pressure stability is guaranteed with this.
Further, the one-level blowdown system includes the pressure relief valve 8 being connected with the first connection header 16, the pressure
Power relief valve 8 is connected to one-level emptying standpipe 7.When one-level blowdown system is turned on, the pressure being connected with one-level emptying standpipe 7 is released
8 positive opening of valve is put, gas in cargo tank 1 is emitted.
Further, pressure transducer is also equipped with the cargo tank 2, the pressure transducer is used to detect cargo tank pressure
And the pressure for detecting is sent to controller.Pressure transducer is installed in cargo tank, the pressure in real-time detection cargo tank is concurrent
Pressurization pressure data, controller carry out certain operation according to pressure value and ensure that the pressure in cargo tank is in stable state.
Further, the pressure relief valve 8 is connected to controller 10, and the controller 10 is according to 2 Stress control of cargo tank
The pressure relief valve opens or closes, and the inert gas generator 4 works or stops.
Pressure relief valve 8 is connected to controller, and the instruction according to control is positive or reverse opening or closing, and which is by oil
In cabin, gas is emitted and is opened for positive, and from air, air inlet to cargo tank is reverse opening, and the pressure relief valve 8 presets maximum
Pressure value and minimum pressure values, when the data of sensor detection are more than 8 default maximum pressure value of pressure relief valve, controller control
Pressing pressure relief valve 8 is positive to be opened, and the gas in cargo tank is discharged；When sensor detection data less than pressure relief valve 8 it is pre-
If minimum pressure values, 8 reverse opening of controller control pressure relief valve, from air, air-breathing is supplemented in cargo tank and ensures cargo tank
Interior pressure is stablized, and inert gas generator 4 can be worked generation noble gas first before this, be provided with 4 work of inert gas generator in controller
Make pressure value, when cargo tank pressure reaches the pressure value, controller control inert gas generator 4 is started working and produces gas, noble gas
Switch valve 5 is opened and for the gas of generation to drain into makeup oil lock pressure power in cargo tank.
Further, two grades of blowdown systems include connecting the vacuum pressure release that cargo tank 2 connects header 17 with second
Valve 3, the second connection header 17 are connected to two grades of emptying standpipes 6.
When pressure relief valve 8 breaks down, and cargo tank pressure is persistently raised, two grades of blowdown system conductings, vacuum pressure are released
Put valve 3 to automatically open up, the vacuum pressure relief valve 3 have it is positive open and reverse opening pressure value, when reaching the pressure
During value, vacuum pressure relief valve 3 automatically positive can be opened or reverse opening, discharges the gas in cargo tank or mends into cargo tank
Inflatable body, it is ensured that pressure stability in cargo tank.
Further, 3 positive setting pressure of the vacuum pressure relief valve is more than 8 positive setting pressure of the pressure relief valve
Power；
Reversely setting pressure reversely sets pressure less than the pressure relief valve 8 to the vacuum pressure relief valve 3.
FPSO cargo tanks rebreather provided in an embodiment of the present invention is provided with multiplexer channel in expiration or air-breathing
Cargo tank pressure is carried out stablizing, during expiration, the gas of exhalation is reclaimed by gas recovery system, and energy saving reduces pollution, if exhaling
The gas that goes out is excessive or gas recovery system breaks down, one-level blowdown system and two grades of blowdown systems according to cargo tank pressure according to
Secondary forward conduction, realizes the discharge of cargo tank gas, wherein the positive setting pressure of the vacuum pressure relief valve 3 in two grades of blowdown systems
Positive setting pressure of the power more than the pressure relief valve 8 in one-level blowdown system, it is ensured that when exhaling, one-level blowdown system guide
It is logical；
During air-breathing, cargo tank is supplemented in from air-breathing in natural gas process processing system by air-breathing switch valve 9 first, if air-breathing
Switch valve 9 or natural gas process processing system break down, and inert gas generator is started working and supplements noble gas, if the noble gas occurs
Device breaks down, and one-level blowdown system and two grades of blowdown systems supplement empty into cargo tank according to cargo tank pressure successively reverse-conducting
Gas, it is ensured that cargo tank pressure stability, wherein the reverse setting pressure of the vacuum pressure relief valve 3 in two grades of blowdown systems is less than one-level
The reverse setting pressure of the pressure relief valve 8 in blowdown system, it is ensured that in air-breathing, one-level blowdown system is first turned on, by upper
The stablizing for cargo tank pressure of the guarantee of work of one-level one-level is stated, and can ensure to there is follow-up when any position is broken down
Remedial measure, it is ensured that the safety of cargo tank work.
Further, the cargo tank 1 connects with described first and switch valve 2 is additionally provided between header 16.
First connection header 16 is connected to natural gas air inlet and gas recovery system, and the first header connects multiple cargo tanks,
There are multiple cargo tanks on FPSO, air-breathing switch valve and gas recovery system are connected to by the first connection header 16, in each oil
Cabin connects with first between header 16 and sets switch valve, when some cargo tank breaks down, by closing the switch being attached thereto
Valve cut-out cargo tank connects the connection between header 16 with first, it is ensured that the steady operation of other cargo tanks or gas recovery system,
The work of whole FPSO will not be impacted.
Further, the cargo tank 2 is connected to inert gas generator 4, the inert gas generator 4 by the second connection header 17
Noble gas switch valve 5 is connected between the cargo tank 2.Inert gas generator is connected to the second connection header by noble gas switch valve
17, all cargo tanks are connected by the second connection header 17.
Further, the compressor 14 is connected to natural gas process processing system, the recovery by air-breathing switch valve 9
Pump 13 is connected to lime set technology processing system.Air-breathing switch valve 9 connects natural gas process processing system to enter circulation of qi promoting to cargo tank
Body is supplemented, the connection lime set technology processing system of recovery pump 13, the fluid in exhaled gas in cargo tank is separated and is stored.
The combustible gas that on the one hand FPSO cargo tanks rebreather provided in an embodiment of the present invention will can be breathed out in cargo tank
Body is reclaimed, energy saving, reduction pollution, and on the other hand, a plurality of pipeline is parallel, when cargo tank expiration or air-breathing,
Whatsoever the occurrence of, can ensure stablizing for pressure in cargo tank.
Above description is only the preferred embodiment and the explanation to institute's application technology principle of the application.People in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to the technology of the particular combination of above-mentioned technical characteristic
Scheme, while should also cover in the case of without departing from the inventive concept, is carried out by above-mentioned technical characteristic or its equivalent feature
Combination in any and other technical schemes for being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (9)
1. a kind of FPSO cargo tanks rebreather, it is characterised in that including cargo tank,
The cargo tank is connected to gas recovery system, natural gas gas handling system and one-level blowdown system by the first connection header,
The cargo tank is connected to two grades of blowdown systems by the second connection header, is connected to inert gas generator by third connecting header；
The gas recovery system is connected to the first connection header by switch valve, and the gas recovery system includes being sequentially connected with
Emptying Gas Cooler and drop a hint scrubber, the scrubber two ends of dropping a hint are respectively connecting to compressor and recovery pump.
2. FPSO cargo tanks rebreather according to claim 1, it is characterised in that the one-level blowdown system includes
The pressure relief valve being connected with the first connection header, the pressure relief valve are connected to one-level emptying standpipe.
3. FPSO cargo tanks rebreather according to claim 2, it is characterised in that pressure is also equipped with the cargo tank
Force transducer, the pressure transducer are used to detect cargo tank pressure and the pressure for detecting be sent to controller.
4. FPSO cargo tanks rebreather according to claim 3, it is characterised in that the pressure relief valve is connected to
Controller, controller pressure relief valve according to cargo tank Stress control opens or closes, the inert gas generator work
Make or stop.
5. FPSO cargo tanks rebreather according to claim 2, it is characterised in that two grades of blowdown systems include
Connection cargo tank connects the vacuum pressure relief valve of header with second, and the second connection header is connected to two grades of emptying standpipes.
6. FPSO cargo tanks rebreather according to claim 5, it is characterised in that the vacuum pressure relief valve is just
To setting pressure more than the positive setting pressure in the pressure relief valve；
The vacuum pressure relief valve reversely sets pressure and reversely sets pressure less than the pressure relief valve.
7. according to the arbitrary described FPSO cargo tank rebreathers of claim 1-6, it is characterised in that the cargo tank with it is described
Switch valve is additionally provided between first connection header.
8. according to the arbitrary described FPSO cargo tank rebreathers of claim 1-6, it is characterised in that the cargo tank is by the
Two connection headers are connected to inert gas generator, connect noble gas switch valve between the inert gas generator and the cargo tank.
9. according to the arbitrary described FPSO cargo tank rebreathers of claim 1-6, it is characterised in that the compressor passes through
Air-breathing switch valve is connected to natural gas process processing system, and the recovery pump is connected to lime set technology processing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254241.4A CN106586318B (en) | 2016-12-30 | 2016-12-30 | FPSO cargo tank rebreather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254241.4A CN106586318B (en) | 2016-12-30 | 2016-12-30 | FPSO cargo tank rebreather |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106586318A true CN106586318A (en) | 2017-04-26 |
| CN106586318B CN106586318B (en) | 2019-03-15 |
Family
ID=58581389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611254241.4A Active CN106586318B (en) | 2016-12-30 | 2016-12-30 | FPSO cargo tank rebreather |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106586318B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113002697A (en) * | 2021-03-12 | 2021-06-22 | 上海外高桥造船有限公司 | Stainless steel cabin structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0972977B1 (en) * | 1998-07-17 | 2004-08-18 | Air Liquide Electronics Systems | Pressure regulator, gas supply system and distribution network for corresponding working fluids |
| CN203628269U (en) * | 2013-11-06 | 2014-06-04 | 中国海洋石油总公司 | Inert gas system for FPSO (floating production storage and offloading) |
| CN104443897A (en) * | 2014-10-31 | 2015-03-25 | 浙江海洋学院 | Comprehensive treatment device and method for crude oil tank emergent gas and ship tail gas recycle |
| CN205045281U (en) * | 2015-08-14 | 2016-02-24 | 中国石油大学(华东) | Large -scale storage tank vapor recovery system system |
| KR20160091784A (en) * | 2015-01-26 | 2016-08-03 | 대우조선해양 주식회사 | Boil-off gas management system of the lng-fpso and the lng-fpso with the same |
-
2016
- 2016-12-30 CN CN201611254241.4A patent/CN106586318B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0972977B1 (en) * | 1998-07-17 | 2004-08-18 | Air Liquide Electronics Systems | Pressure regulator, gas supply system and distribution network for corresponding working fluids |
| CN203628269U (en) * | 2013-11-06 | 2014-06-04 | 中国海洋石油总公司 | Inert gas system for FPSO (floating production storage and offloading) |
| CN104443897A (en) * | 2014-10-31 | 2015-03-25 | 浙江海洋学院 | Comprehensive treatment device and method for crude oil tank emergent gas and ship tail gas recycle |
| KR20160091784A (en) * | 2015-01-26 | 2016-08-03 | 대우조선해양 주식회사 | Boil-off gas management system of the lng-fpso and the lng-fpso with the same |
| CN205045281U (en) * | 2015-08-14 | 2016-02-24 | 中国石油大学(华东) | Large -scale storage tank vapor recovery system system |
Non-Patent Citations (1)
| Title |
|---|
| 张武奎: "《FPSO资产管理》", 30 September 2006, 中国石油大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113002697A (en) * | 2021-03-12 | 2021-06-22 | 上海外高桥造船有限公司 | Stainless steel cabin structure |
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| Publication number | Publication date |
|---|---|
| CN106586318B (en) | 2019-03-15 |
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Address after: 226000 No. 1, COSCO Road, Jiangsu, Nantong Co-patentee after: Qidong Zhongyuan Marine Engineering Co., Ltd. Patentee after: Nantong COSCO Shipping Engineering Co., Ltd. Address before: 226000 No. 1, COSCO Road, Jiangsu, Nantong Co-patentee before: COSCO Shipping (Qidong) Ocean Engineering Co., Ltd. Patentee before: COSCO Shipyard Group Co., Ltd. |
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