CN107178927A - A kind of BOG of LNG Power Vessels utilizes system and method for work - Google Patents
A kind of BOG of LNG Power Vessels utilizes system and method for work Download PDFInfo
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- CN107178927A CN107178927A CN201710480506.0A CN201710480506A CN107178927A CN 107178927 A CN107178927 A CN 107178927A CN 201710480506 A CN201710480506 A CN 201710480506A CN 107178927 A CN107178927 A CN 107178927A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
System and method of work are utilized the invention discloses a kind of BOG of LNG Power Vessels, the system includes direct combustion type LiBr-Air-conditioner loop, the marine main engine jacket-cooling water loop using BOG as fuel.Using LNG storage tank flash steam (BOG) as direct fired lithium bromide absorption type chiller fuel, lithium bromide water solution is heated using the heat of its burning, the cold that has with low temperature BOG cools down marine main engine jacket-cooling water simultaneously, during summer, absorber and condenser are cooled down with life fresh water.Present invention, avoiding the re-liquefied processes of BOG, save the big energy needed for the enormous investment expense and re-liquefied process of reliquefaction installation, the high heat that BOG burnings are produced be make use of as the thermal source of oil direct-fired absorption chiller, marine main engine jacket-cooling water is also cooled, the efficient utilization of BOG cold energy and heat energy is realized.
Description
Technical field
System and method of work are utilized the present invention relates to a kind of BOG of LNG Power Vessels, belongs to BOG processing technology fields.
Background technology
It is reported that, global explored gas reserves can be exploited more than 200 years, and the exploitation time limit of oil by disappearing now
The speed of consumption, can only be supported 40~70 years.In theory, the fuel most cleaned is liquified hydrogen, and water is only generated during burning.But it is right
For the ship of heavy duty is needed, LNG is current optimal clean fuel.LNG major advantage is：Environmental protection,
It is that one kind is cleaned and efficient fuel, meets the environmentally friendly trend of shipping business；Save money, LNG prices are generally 75% of diesel oil or so,
Therefore, LNG fuel ship can save 25% expense in 1 year than diesel fuel ship.But the liquid methane of LNG Power Vessels is outside
Boundary temperature field and gaseous methane (abbreviation BOG) can be volatilized in the presence of itself rocking, daily evaporation rate is generally in 0.1%-
Between 0.25%, therefore substantial amounts of BOG can be produced in LNG Power Vessel shippings way.
At present, BOG processing mode includes burning, re-liquefied and emptying.The patent of Application No. 201620917099.6
Disclose a kind of external-combustion engine TRT burnt based on LNG receiving stations BOG.The device contains a set of BOG gas burners
With utilization fuel combustion heat cycles working medium, the TRT combined with external-combustion engine.The patent proposes to burn what is discharged using BOG
Heat energy is converted into mechanical energy, and driving TRT is generated electricity, and using BOG burner exhaust heats heating low temperature BOG, it is heated up.
Such a method make use of BOG burner exhaust heat, but be stored in a large amount of high-quality cold energy in low temperature BOG by high-temperature flue gas absorb not
It can be used, cause substantial amounts of cold energy to waste.
The patent of Application No. 201510202322.9 discloses the LNG gaseous fuels supply side that a kind of BOG is preferentially utilized
Method and device, the device include feeder and supercharging device.It supplies flow：The BOG of LNG storage tank is drawn by exhaust outlet, warp
It is warming up to send into gas-fired equipment after operating temperature in the back segment heat exchanger tube of air supply pipe feeding heat exchanger and uses.It is pressurized flow：
The LNG of LNG storage tank is drawn by liquid outlet, in the leading portion heat exchanger tube that heat exchanger is sent into through pressure inlet, makes LNG vaporization into passing through after NG
Air inlet loopback enters to maintain the pressure in LNG storage tank in the gas-phase space of LNG storage tank, and continues simultaneously through exhaust outlet to described
Supplied in air supply pipe.There is certain feasibility query in the method and device described in the patent, first, and LNG colds are huge, its vapour
Change process is necessarily required to substantial amounts of heat, and the hot water demand's amount used described in patent will be very huge, and it is originated and supply
LNG vaporization requirement can be met and there is query, and directly exchanged heat using hot water with LNG, a large amount of high-grade heat are wasted
Can, while a large amount of high-grade LNG vaporization cold energy are directly drained, cause cold energy to waste.
The content of the invention
Patent purpose of the present invention be for above-mentioned prior art defect and problem there is provided a kind of BOG of LNG Power Vessels
Utilize system.The heat discharged when being burnt using BOG, driving direct fired lithium bromide absorption type chiller operation.Meanwhile, profit
Marine main engine jacket-cooling water is cooled down with low temperature BOG cold, lithium bromide-water solution is cooled down using life fresh water and water steams
Vapour, reduces the energy-output ratio more than 20% of marine air-conditioning system, economy and the feature of environmental protection that ship-lifting is integrally runed.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of BOG of LNG Power Vessels utilizes system, including using BOG as fuel direct combustion type LiBr-Air-conditioner loop,
Marine main engine jacket-cooling water loop, wherein the use BOG as the direct combustion type LiBr-Air-conditioner loop of fuel by LNG storage tank
1, magnetic valve 2, BOG heaters 3, burner 21, high pressure generator 4, low pressure generator 10, condenser 5, choke valve 6, evaporator
7, absorber 8, solution pump 9, solution heat exchanger 20, high pressure generator 4, low pressure generator 10 and absorber 8, by pipeline successively
Connect and compose；The outlet x of wherein described high pressure generator 4 is also sequentially connected heat-exchanger pump 17, user 15 and high pressure by pipeline
The import u of raw device (4)；The import u of the high pressure generator (4) is also sequentially connected regulating valve 19, condenser 5 by pipeline, inhaled
Receive device 8 and water pump 16；The marine main engine jacket-cooling water loop, by marine main engine cylinder sleeve 13, electric T-shaped valve 14, BOG adds
Hot device 3, surge tank 11, circulating pump 12 is sequentially connected composition by pipeline.
Further, electronic three are also associated with by pipeline between the entrance p of the marine main engine cylinder sleeve 13 and surge tank 11
Port valve 14.
Further, the BOG heaters 3 are hot water circuit vaporizer, and heating medium uses marine main engine jacket-cooling water.
Further, the import t of the absorber 8 is also connected with water pump 16 by pipeline, and outlet r is also connected with described by pipeline
The entrance s of condenser 5, is also associated between the outlet y of the condenser 5 and the import u of the high pressure generator 4 by pipeline
Regulating valve 19.
Further, burner 21 is additionally provided with the high pressure generator 4, the front end of burner 21 is connected with furnace tube,
Uniform around the furnace tube to be connected to convection recuperator pipe 18, the end of convection recuperator 18 connects smoke discharging pipe.
Further, it is also associated with magnetic valve 2 between the outlet of the LNG fluid reservoirs 1 and the entrance a of BOG heaters 3.
Further, the first pipeline 22 between the high pressure generator 4 and low pressure generator 10 also with conveying intermediate solution
It is connected.
Further, between the outlet d and the solution heat exchanger 20 of the low pressure generator 10 and the solution heat exchanger
Between 20 and the import l of the absorber 8, it is connected by pipeline.
Further, the second pipe 23 between the low pressure generator 10 and condenser 5 also with conveying refrigerant vapor
It is connected.
A kind of BOG of LNG Power Vessels of the present invention utilizes the method for work of system, and the method for work includes following two kinds
Loop：Direct combustion type LiBr-Air-conditioner loop and marine main engine jacket-cooling water loop by fuel of BOG；
The working method in the direct combustion type LiBr-Air-conditioner loop by fuel of BOG：The low temperature BOG flashed off in LNG storage tank
Enter heat exchanger by magnetic valve, exchanged heat with high-temperature ship main engine jacket cooling water, the BOG after heating is sprayed by burner,
Stove cylinder roasting, the high-temperature flue gas of generation heats lithium bromide weak solution by furnace tube and convection recuperator, makes its heating boiling, production
Raw high-pressure water vapor exchanges heat in condenser with life fresh water, progress cooling condensation, formation highly pressurised liquid, and the life after heating up
Fresh water feeding high pressure generator living continues to be heated as domestic hot-water, with for users to use.Highly pressurised liquid throttles through choke valve to drop
Enter evaporator heat absorption vaporization after pressure, be that air conditioning water is cooled, cold is provided for air conditioner user.It is low after throttling vaporization
Pressure water vapour is brominated the absorption of lithium concentrated solution in absorber, forms lithium bromide weak solution, and is boosted by solution pump, by solution
Enter high pressure generator after heat exchanger, the lithium bromide weak solution of low temperature and the lithium bromide concentrated solution of high temperature are changed in solution heat exchanger
Heat heating, enters back into high pressure generator and carries out boiling vaporization, now vapor (steam) temperature is too high, therefore high steam is passed through low pressure hair
Raw device continues to make lithium bromide water solution boiling vaporization.Lithium bromide concentrated solution after cooling in solution heat exchanger enters absorber,
Low pressure water vapor is absorbed, circulation is completed.During winter, the weak solution in high pressure generator produces superheated steam after being heated, and is steaming
Send out device copper pipe surface and condense and release hot water backwater in heat, heating tube, form high-temperature-hot-water feeding user's heating, concentrated solution and cold
The mixed weak solution of agent water is sent to high pressure generator by solution pump and carries out circulating-heating again, completes direct combustion type LiBr-Air-conditioner
Loop.
The working method in marine main engine jacket-cooling water loop：First, marine main engine jacket-cooling water is by marine main engine cylinder
Set flows into electric T-shaped valve, adjusts the flow of electric T-shaped valve, part main engine jacket cooling water is entered the heating of BOG heaters low
Warm BOG, the main engine jacket cooling water after cooling flows into surge tank and mixed with main engine jacket cooling water of the part without cooling
Close to reach suitable temperature, mixed main engine jacket cooling water is pumped into marine main engine cylinder sleeve by circulating, complete ship master
Machine jacket-cooling water loop.
The major function of the present invention is that low temperature BOG and lithium bromide absorption type air conditioner group are carried out into organic combination, utilizes BOG
The amount of heat discharged during burning, as the thermal source of direct fired lithium bromide absorption type chiller, and utilizes low temperature BOG's
Cold energy cools down lithium bromide-water solution and water vapour to cool down marine main engine jacket-cooling water using life fresh water, improves energy
Source utilization ratio more than 20%.Present invention, avoiding the re-liquefied processes of BOG, save reliquefaction installation enormous investment expense and
Big energy needed for re-liquefied process, make use of the high heat that BOG burnings are produced as the thermal source of oil direct-fired absorption chiller,
Marine main engine jacket-cooling water is also cooled, the efficient utilization of BOG cold energy and heat energy is realized.
Brief description of the drawings
Fig. 1 is principle schematic diagram of the embodiment of the present invention.
In figure：1.LNG fluid reservoirs, 2. magnetic valves, 3.BOG heaters, 4. high pressure generators, 5. condensers, 6. choke valves,
7. evaporator, 8. absorbers, 9. solution pumps, 10. low pressure generators, 11. surge tanks, 12. circulating pumps, 13. marine main engine cylinder sleeves,
14. electric T-shaped valve, 15. users, 16. water pumps, 17. heat-exchanger pumps, 18. convection recuperators, 19. regulating valves, the heat exchange of 20. solution
Device, 21. burners, 22. first pipelines, 23. second pipes.
Embodiment
Below in conjunction with the accompanying drawings 1 and specific embodiment invention is described in further detail.
As shown in Figure 1：A kind of BOG of LNG Power Vessels of the present invention utilizes system, including is used as the straight of fuel using BOG
Combustion type LiBr-Air-conditioner loop, marine main engine jacket-cooling water loop, wherein, the direct combustion type lithium bromide using BOG as fuel
Air conditioner loop, by LNG fluid reservoirs 1, import a, outlet b, the entrance v of high pressure generator 4 of BOG heaters 3 export w, low pressure hair
The entrance e of raw device 10, exports y, import f, the outlet g of condenser 5, choke valve 6, import h, the outlet i, absorber 8 of evaporator 7
Import j, outlet k, solution pump (9), solution heat exchanger (20), the import c of high pressure generator (4) is sequentially connected by pipeline
Constitute；The outlet x of wherein described high pressure generator 4 is also sequentially connected heat-exchanger pump 17, user 15 and high pressure generator 4 by pipeline
Import u；The import u of the high pressure generator 4 is also sequentially connected regulating valve 19, condenser 5, absorber 8 and water by pipeline
Pump 16；The marine main engine jacket-cooling water loop, by marine main engine cylinder sleeve 13, electric T-shaped valve 14, BOG heaters 3 enter
Mouth m, outlet n, import o, the outlet q of surge tank 11, circulating pump 12 are sequentially connected composition by pipeline.
Electric T-shaped valve is also associated with by pipeline between the entrance p of the marine main engine cylinder sleeve 13 and the surge tank 11
14。
The BOG heaters (3) are hot water circuit vaporizer, and heating medium uses marine main engine jacket-cooling water.
The import t of the absorber 8 is also connected with water pump 16 by pipeline, and outlet r is also connected with the condenser 5 by pipeline
Entrance s, between the outlet y of the condenser 5 and the import u of the high pressure generator 4 by pipeline be also associated with adjust
Save valve 19.
Burner 21 is additionally provided with the high pressure generator 4, the front end of burner 21 is connected with furnace tube, the furnace tube
Surrounding is uniformly connected to convection recuperator pipe 18, and the end of convection recuperator 18 connects smoke discharging pipe.
Magnetic valve 2 is also associated between the outlet of the LNG fluid reservoirs 1 and the entrance a of BOG heaters 3.
Also it is connected between the high pressure generator 4 and low pressure generator 10 with conveying the first pipeline 22 of intermediate solution.
Between the outlet d and the solution heat exchanger 20 of the low pressure generator 10 and the solution heat exchanger 20 with it is described
Between the import l of absorber 8, it is connected by pipeline.
Also it is connected between the low pressure generator 10 and condenser 5 with conveying the second pipe 23 of refrigerant vapor.
A kind of BOG of LNG Power Vessels utilizes the method for work of system, and methods described includes following two kinds of working methods：
(1) working method in the direct combustion type LiBr-Air-conditioner loop by fuel of BOG：The low temperature flashed off in LNG storage tank 1
BOG enters BOG heaters 3 by magnetic valve 2, is exchanged heat with high-temperature ship main engine jacket cooling water, the BOG after heating is by burner
21 spray, and in stove cylinder roasting, the high-temperature flue gas of generation heats lithium bromide weak solution by furnace tube and convection recuperator 18, makes it
Heating boiling, the high-pressure water vapor of generation exchanges heat in condenser 5 with life fresh water, carries out cooling and is condensed into liquid, and heats up
Life fresh water feeding high pressure generator 4 afterwards continues to be heated as domestic hot-water, so that user 15 uses；Highly pressurised liquid is through throttling
Enter the heat absorption vaporization of evaporator 7 after the reducing pressure by regulating flow of valve 6, be that air conditioning water is cooled, be that air conditioner user 15 provides cold；Section
Low pressure water vapor after stream vaporization is brominated the absorption of lithium concentrated solution in absorber 8, forms lithium bromide weak solution, and by solution pump
9 boosting, after solution heat exchanger 20 enter high pressure generator 4, in solution heat exchanger 20 the lithium bromide weak solution of low temperature with
The lithium bromide concentrated solution heat exchange heating of high temperature, enters back into high pressure generator 4 and carries out boiling vaporization, now vapor (steam) temperature is too high, because
This high steam, which is passed through low pressure generator 10, to be continued to make lithium bromide water solution boiling vaporization；After cooling in solution heat exchanger
Lithium bromide concentrated solution enters absorber 8, absorbs low pressure water vapor, completes circulation；During winter, the weak solution in high pressure generator 4
Superheated steam is produced after being heated, the hot water backwater in the copper pipe surface of evaporator 7 condenses releasing heat, heating tube forms high temperature
Hot water feeding user's heating, concentrated solution and the mixed weak solution of water as refrigerant are sent to high pressure generator 4 by solution pump 9 and carried out again
Circulating-heating, completes direct combustion type LiBr-Air-conditioner loop；
(2) working method in marine main engine jacket-cooling water loop：First, marine main engine jacket-cooling water is by marine main engine
Cylinder sleeve 13 flows into electric T-shaped valve 14, adjusts the flow of electric T-shaped valve 14, part main engine jacket cooling water is heated into BOG
Device 3 heats low temperature BOG, and the main engine jacket cooling water after cooling flows into surge tank 11 and main engine jacket of the part without cooling is cold
But water is mixed to reach suitable temperature, and mixed main engine jacket cooling water sends into marine main engine cylinder sleeve by circulating pump 12
13, complete marine main engine jacket-cooling water loop.
In addition to the implementation, the present invention can also have other implementations, all use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the invention scope of application claims.
Claims (10)
1. a kind of BOG of LNG Power Vessels utilizes system, it is characterised in that：Including the direct combustion type LiBr-Air-conditioner using BOG as fuel
Loop, marine main engine jacket-cooling water loop；Wherein, the direct combustion type LiBr-Air-conditioner loop using BOG as fuel, by LNG
Fluid reservoir (1), import a, outlet b, the entrance v of high pressure generator (4) of BOG heaters (3), exports w, low pressure generator (10)
Entrance e, export y, the import f of condenser (5), outlet g, choke valve (6), import h, the outlet i, absorber of evaporator (7)
(8) import j, outlet k, solution pump (9), solution heat exchanger (20), the import c of high pressure generator (4) are connected successively by pipeline
Connect composition；The outlet x of wherein described high pressure generator (4) is also sequentially connected heat-exchanger pump (17), user (15) and height by pipeline
Press the import u of generator (4)；The import u of the high pressure generator (4) is also sequentially connected regulating valve 19, condenser by pipeline
5th, absorber 8 and water pump 16；The marine main engine jacket-cooling water loop, by marine main engine cylinder sleeve (13), electric T-shaped valve
(14), the import m of BOG heaters (3), outlet n, the import o of surge tank (11), outlet q, circulating pump (12), by pipeline according to
It is secondary to connect and compose.
2. a kind of BOG of LNG Power Vessels according to claim 1 utilizes system, it is characterised in that：The marine main engine cylinder
Electric T-shaped valve (14) is also associated with by pipeline between set (13) and the entrance p of the surge tank (11).
3. a kind of BOG of LNG Power Vessels according to claim 1 utilizes system, it is characterised in that：The BOG heaters
(3) it is hot water circuit vaporizer, heating medium is using marine main engine jacket-cooling water.
4. a kind of BOG of LNG Power Vessels according to claim 1 utilizes system, it is characterised in that：The absorber (8)
Import t water pump (16) is also connected with by pipeline, outlet r is also connected with the entrance s of the condenser (5) by pipeline, described cold
Regulating valve (19) is also associated with by pipeline between the import u of the outlet y of condenser (5) and the high pressure generator (4).
5. a kind of BOG of LNG Power Vessels according to claim 1 utilizes system, it is characterised in that：The high pressure generator
(4) it is additionally provided with burner (21) in, burner (21) front end is connected with around furnace tube, the furnace tube uniform be connected to pair
Tube Sheet of Heat Exchanger (18) is flowed, convection recuperator (18) end connects smoke discharging pipe.
6. a kind of BOG of LNG Power Vessels according to claim 1 utilizes system, it is characterised in that：The LNG fluid reservoirs
(1) magnetic valve (2) is also associated between outlet and the entrance a of BOG heaters (3).
7. a kind of BOG of LNG Power Vessels according to claim 1 utilizes system, it is characterised in that：The high pressure generator
(4) also it is connected between low pressure generator (10) with conveying the first pipeline (22) of intermediate solution.
8. a kind of BOG of LNG Power Vessels according to claim 1 utilizes system, it is characterised in that：The low pressure generator
(10) between outlet d and the solution heat exchanger (20) and the solution heat exchanger (20) and the absorber (8) import l
Between, it is connected by pipeline.
9. a kind of BOG of LNG Power Vessels according to claim 1 utilizes system, it is characterised in that：The low pressure generator
(10) also it is connected between condenser (5) with conveying the second pipe (23) of refrigerant vapor.
10. a kind of BOG of LNG Power Vessels according to claim 1 to 10 any one utilizes the method for work of system, its
It is characterised by：Methods described includes following two kinds of working methods：
(1) working method in the direct combustion type LiBr-Air-conditioner loop by fuel of BOG：The low temperature flashed off in LNG storage tank (1)
BOG enters BOG heaters (3) by magnetic valve (2), is exchanged heat with high-temperature ship main engine jacket cooling water, the BOG after heating is by firing
Burner (21) sprays, and in stove cylinder roasting, the high-temperature flue gas of generation is dilute by furnace tube and convection recuperator (18) heating lithium bromide
Solution, makes its heating boiling, and the high-pressure water vapor of generation exchanges heat with life fresh water in condenser (5), carries out cooling and be condensed into
Liquid, and the life fresh water feeding high pressure generator (4) after heating up continues to be heated as domestic hot-water, so that user (15) makes
With；Highly pressurised liquid enters evaporator (7) heat absorption vaporization after choke valve (6) reducing pressure by regulating flow, is that air conditioning water is cooled, is
Air conditioner user (15) provides cold；Low pressure water vapor after throttling vaporization is brominated lithium concentrated solution in absorber (8) and absorbed, shape
Boosted into lithium bromide weak solution, and by solution pump (9), high pressure generator (4) is entered after solution heat exchanger (20), in solution
The lithium bromide weak solution of heat exchanger (20) interior low temperature and the lithium bromide concentrated solution heat exchange of high temperature heat up, and enter back into high pressure generator
(4) boiling vaporization is carried out, now vapor (steam) temperature is too high, therefore high steam is passed through low pressure generator (10) continues to make lithium bromide
Aqueous solution boiling vaporization；Lithium bromide concentrated solution after cooling in solution heat exchanger enters absorber (8), absorbs low pressure water and steams
Vapour, completes circulation；During winter, the weak solution in high pressure generator (4) produces superheated steam after being heated, in evaporator (7) copper
Pipe surface, which condenses, releases hot water backwater in heat, heating tube, forms high-temperature-hot-water feeding user's heating, concentrated solution and water as refrigerant are mixed
Weak solution after conjunction is sent to high pressure generator (4) by solution pump (9) and carries out circulating-heating again, completes direct combustion type LiBr-Air-conditioner
Loop；
(2) working method in marine main engine jacket-cooling water loop：First, marine main engine jacket-cooling water is by marine main engine cylinder sleeve
(13) electric T-shaped valve (14) is flowed into, the flow of regulation electric T-shaped valve (14) makes part main engine jacket cooling water add into BOG
Hot device (3) heats low temperature BOG, and the main engine jacket cooling water after cooling flows into surge tank (11) and main frame of the part without cooling
Jacket-cooling water is mixed to reach suitable temperature, and mixed main engine jacket cooling water sends into ship by circulating pump (12)
Main engine jacket (13), completes marine main engine jacket-cooling water loop.
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| CN201710480506.0A CN107178927B (en) | 2017-06-22 | 2017-06-22 | BOG utilization system of LNG power ship and working method |
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| CN201710480506.0A CN107178927B (en) | 2017-06-22 | 2017-06-22 | BOG utilization system of LNG power ship and working method |
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| CN107178927B CN107178927B (en) | 2023-01-10 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914860A (en) * | 2017-10-26 | 2018-04-17 | 上海宏华海洋油气装备有限公司 | Intelligent liquefied natural gas generating ship |
| CN111120025A (en) * | 2020-01-16 | 2020-05-08 | 北京市燃气集团有限责任公司 | Receiving station LNG cold energy power generation and BOG recovery power generation coupling system and method |
| CN112963732A (en) * | 2021-03-16 | 2021-06-15 | 浙江浙能技术研究院有限公司 | BOG comprehensive utilization system of LNG receiving station |
| CN113915523A (en) * | 2021-11-05 | 2022-01-11 | 江苏科技大学 | BOG heating utilization and LNG regasification system and control method thereof |
| CN114087523A (en) * | 2021-11-15 | 2022-02-25 | 贵州大学 | BOG processing device and method for LNG storage and distribution station |
| CN114576555A (en) * | 2022-03-17 | 2022-06-03 | 广西西江重工有限责任公司 | Ship LNG vaporization system applied to low-temperature environment and application method |
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| CN107914860A (en) * | 2017-10-26 | 2018-04-17 | 上海宏华海洋油气装备有限公司 | Intelligent liquefied natural gas generating ship |
| CN107914860B (en) * | 2017-10-26 | 2024-03-15 | 上海宏华海洋油气装备有限公司 | Intelligent liquefied natural gas power generation ship |
| CN111120025A (en) * | 2020-01-16 | 2020-05-08 | 北京市燃气集团有限责任公司 | Receiving station LNG cold energy power generation and BOG recovery power generation coupling system and method |
| CN111120025B (en) * | 2020-01-16 | 2024-04-09 | 北京市燃气集团有限责任公司 | Receiving station LNG cold energy power generation and BOG recovery power generation coupling system and method |
| CN112963732A (en) * | 2021-03-16 | 2021-06-15 | 浙江浙能技术研究院有限公司 | BOG comprehensive utilization system of LNG receiving station |
| CN113915523A (en) * | 2021-11-05 | 2022-01-11 | 江苏科技大学 | BOG heating utilization and LNG regasification system and control method thereof |
| CN113915523B (en) * | 2021-11-05 | 2024-12-17 | 江苏科技大学 | BOG heating utilization and LNG regasification system and control method thereof |
| CN114087523A (en) * | 2021-11-15 | 2022-02-25 | 贵州大学 | BOG processing device and method for LNG storage and distribution station |
| CN114087523B (en) * | 2021-11-15 | 2023-02-24 | 贵州大学 | BOG processing device and method for LNG storage and distribution station |
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| CN114576555B (en) * | 2022-03-17 | 2023-08-22 | 广西西江重工有限责任公司 | Ship LNG vaporization system applied to low-temperature environment and application method |
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