CN109863081A - The system and method for supplying fuel gas for ship - Google Patents
The system and method for supplying fuel gas for ship Download PDFInfo
- Publication number
- CN109863081A CN109863081A CN201780061379.9A CN201780061379A CN109863081A CN 109863081 A CN109863081 A CN 109863081A CN 201780061379 A CN201780061379 A CN 201780061379A CN 109863081 A CN109863081 A CN 109863081A
- Authority
- CN
- China
- Prior art keywords
- cooling water
- engine
- cooling
- fuel gas
- primary heater
- 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.)
- Granted
Links
- 239000002737 fuel gas Substances 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims description 28
- 239000000498 cooling water Substances 0.000 claims abstract description 287
- 239000013505 freshwater Substances 0.000 claims abstract description 120
- 238000001816 cooling Methods 0.000 claims abstract description 67
- 239000006200 vaporizer Substances 0.000 claims abstract description 46
- 239000003949 liquefied natural gas Substances 0.000 claims abstract description 36
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000012530 fluid Substances 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 230000008016 vaporization Effects 0.000 claims abstract description 21
- 238000009834 vaporization Methods 0.000 claims abstract description 20
- 239000003345 natural gas Substances 0.000 claims abstract description 17
- 230000006835 compression Effects 0.000 claims description 73
- 238000007906 compression Methods 0.000 claims description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 66
- 238000005260 corrosion Methods 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 13
- 230000008450 motivation Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 239000013535 sea water Substances 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- AEDZKIACDBYJLQ-UHFFFAOYSA-N ethane-1,2-diol;hydrate Chemical compound O.OCCO AEDZKIACDBYJLQ-UHFFFAOYSA-N 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 primary heater Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
- F17C9/04—Recovery of thermal energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/06—Apparatus for de-liquefying, e.g. by heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
- F17C2225/0107—Single phase
- F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0302—Heat exchange with the fluid by heating
- F17C2227/0309—Heat exchange with the fluid by heating using another fluid
- F17C2227/0316—Water heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0302—Heat exchange with the fluid by heating
- F17C2227/0309—Heat exchange with the fluid by heating using another fluid
- F17C2227/0316—Water heating
- F17C2227/0318—Water heating using seawater
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0367—Localisation of heat exchange
- F17C2227/0388—Localisation of heat exchange separate
- F17C2227/0393—Localisation of heat exchange separate using a vaporiser
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/06—Fluid distribution
- F17C2265/066—Fluid distribution for feeding engines for propulsion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0102—Applications for fluid transport or storage on or in the water
- F17C2270/0105—Ships
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
A kind of system for supplying fuel gas for ship is disclosed.The system for supplying fuel gas for ship includes: vaporizer, for making liquefied natural gas vaporization with by natural gas supply to engine；Primary heater, for exchanging heat between the cooling water being discharged and the fluid as the heat medium in vaporizer after cooling engine to heat fluid；And fresh water generator, for by obtaining fresh water with part or all of heating seawater of the heat source for the cooling water for having passed through primary heater after engine discharge, wherein vaporizer to exchange heat so that liquefied natural gas vaporization between the heat medium and liquefied natural gas by primary heater heating.
Description
Technical field
The present invention relates to the heats for the cooling water for using the engine for ship, and fuel gas is supplied to the hair
The system and method for motivation.
Background technique
Liquefied natural gas (liquefied natural gas, LNG) is the natural gas liquid by making mainly to be made of methane
Change the colorless and transparent liquid obtained to about -163 DEG C with liquefied natural gas, and volume is about the 1/600 of natural gas volume.Cause
This, extremely effective transport is realized in the liquefaction of natural gas.Generally, the liquefied natural gas obtained via the liquefaction of natural gas
It is stored in holding tank and by Shipping.
Can by the example of the marine engine of natural gas supply fuel include gas engine, such as DFDE engine,
ME-GI engine and X-DF engine.There are four strokes for generating electricity and having in each circulation for DFDE engine.Utilize Otto
(Otto cycle) is recycled to operate DFDE engine, there will be the natural of about 6.5 bars of (bar) relatively low pressures in Otto cycle
Gas is injected into combustion chamber, then pushes piston with compressed gas.ME-GI engine is for promoting and having two in each circulation
A stroke.ME-GI engine is operated using diesel cycle (diesel cycle), will be had about in diesel cycle
In the combustion chamber for the near top dead center that the natural gas of 300 Bagao pressures is directly injected into piston.X-DF engine for promote and
There are two strokes for each circulation tool.The natural gas with about 16 bar pressures is used to operate X-DF as fuel utilization Otto cycle
Engine.
It is usually that the liquefaction being stored in holding tank is natural in order to use natural gas to supply fuel to engine as fuel
Gas is vaporized to be supplied to engine, and the vaporization of liquefied natural gas needs heat source.It has been developed that in this field and is pressed from both sides using engine
Water (engine jacket water) is covered as the technology for making the heat source of liquefied natural gas vaporization.
Summary of the invention
Technical problem
In general, after cooling engine, cooling water is through being adjusted to steady temperature.For example, in cooling
It can be the temperature with about 85 DEG C by cooling water control after ME-GI engine.
However, because higher engine load generates more heats, cooling water is needed to cool down more heats,
And because lower engine load generates less heat, cooling water is needed to cool down less heat.In addition, because hair
Motivation is not cooled to prevent the low-temperature corrosion of engine lower than predetermined temperature, makes so reducing engine load from cooling
The heat that water obtains is reduced.
The embodiment of the present invention provides the side of the heat of the cooling water changed for appropriate basic of distribution engine load
Method, and the heat for suitably distributing cooling water equipment effective arrangement.
Technical solution
According to an aspect of the present invention, the system for supplying fuel gas for ship includes: vaporizer makes liquefied natural gas
Vaporization is to be supplied to engine for liquefied natural gas；Primary heater, via what is be discharged after cooling engine from engine
Heat exchange between cooling water and heat medium carrys out the fluid as heat medium in heated vaporizer；And fresh water generates
Device, by with from engine discharge after passed through primary heater cooling water heat source some or all heating seawaters come
Fresh water is generated, wherein vaporizer is made by the heat exchange between the heat medium heated by primary heater and liquefied natural gas
Liquefied natural gas vaporization.
System can also include expansion slot, and the expansion slot absorbs the volume as caused by the expansion or shrinkage of cooling water and becomes
Change.
Engine can be placed in enging cabin, and expansion slot can be placed in 20 meters to 25 meters distances above enging cabin
Place.
Primary heater can be placed at position more higher than expansion slot.
System can also include secondary heater, secondary heater heating be discharged from fresh water generator to be supplied to hair
The cooling water of motivation.
The cooling water being discharged from engine can be divided into two bursts of water flows, so that some in cooling water are supplied to primary heater
And remaining cooling water bypasses primary heater, and system can also include the first triple valve, first triple valve be placed in around
The cooling water for crossing primary heater merges place with the cooling water for having passed through primary heater.
First triple valve can be placed at position more lower than expansion slot.
System can also include cooler, and the cooler makes to have passed through primary heater and fresh water after being discharged from engine
The cooling water of generator is cooling.
System can also include third temperature-control sensor, and the third temperature-control sensor is placed in will be from cooler
On pipeline along the chilled(cooling) water supply (CWS) to engine of discharge and the temperature of cooling water is adjusted, wherein third temperature-control sensor
Preset value with engine load increase and reduce.
The heat source obtained in cooling engine by cooling water can be used by primary heater and secondly by fresh water production first
Raw device uses, and can be cooled down using cooler by heat remaining after fresh water generator use.
System can also include holding tank, and holding tank storage is not transported to the among the cooling water for cooling down engine
The remaining cooling water of one heater.
System can also include the first compression unit, and first compression unit is placed in the cooling water that will be discharged from holding tank
It is supplied on the pipeline along expansion slot, wherein when the liquid level of holding tank reaches predetermined value or is greater than predetermined value or in expansion slot
Liquid level reach predetermined value or less than predetermined value when operates the first compression unit.
System can also include the second compression unit, and second compression unit compresses the cooling water being discharged from fresh water generator
With the chilled(cooling) water supply (CWS) that will compress to engine.
System can also include the first valve, and first valve prevents from being supplied to from engine when the second compression unit stops
The cooling water of one heater flows back.
Vaporizer, primary heater, fresh water generator and the second compression unit can be serially connected to allow to cool down
Water is only recycled by the second compression unit.
System can also include third compression unit, and the third compression unit is placed in the cooling water that will be discharged from engine
It is supplied on the pipeline along primary heater.
Fresh water generator can have the load being expressed by the following equation: B=(y-x) A/z, and wherein A indicates the negative of engine
Lotus, x indicate the maximum heat for being transferred to the fluid as the heat medium in vaporizer, and B indicates the load of fresh water generator, y
Indicate the maximum heat obtained in cooling engine by cooling water, and z instruction is 100% when institute in the load of fresh water generator
The heat needed.
System can also include: at least one of first temperature-control sensor, be placed in cold by what is be discharged from engine
But water is supplied on the pipeline along primary heater so that cooling water maintains at a constant temperature；And second temperature is adjusted and is passed
Sensor, the temperature of cooling water will be adjusted by being placed on the pipeline along the chilled(cooling) water supply (CWS) to engine being discharged from fresh water generator
Degree, the preset value that wherein second temperature adjusts sensor reduce as the load of engine increases.
System can also include air separator, and the air separator, which is placed in, will be discharged from engine and passed through first
On pipeline along the chilled(cooling) water supply (CWS) to fresh water generator of heater, to remove air from cooling water.
Can slot also be discharged comprising air in system, and the air discharge slot discharge is transported to the cold of engine from fresh water generator
But the air in water.
Insulation process can be carried out to part or all for the pipeline that cooling water flows through.
According to another aspect of the present invention, the method for supplying fuel gas for ship includes: 1) being passed through using primary heater
Heat medium is heated by the heat exchange after cooling engine between the cooling water being discharged from engine and heat medium；2)
Make liquefied natural gas via the heat exchange between the heat medium and liquefied natural gas heated by the heat exchange in step 1)
Vaporization；It 3) will be in the middle natural gas supply vaporized of step 2) to engine；And 4) using fresh water generator by using by with
Some or all heating seawaters of the heat source that the cooling water of the heat exchange of heat medium in step 1) obtains generate fresh water.
Method can also include: 5) heating cooling water used in fresh water generator in step 4).
In step 5), when not operating engine, cooling water can be heated to that the low-temperature corrosion of engine can be prevented
Temperature or be greater than the temperature.
In step 5), it is reduced in the temperature for determining the cooling water after 100% operation fresh water generator in step 4)
Lower than the low-temperature corrosion that can prevent engine temperature when, 100% operation fresh water generator after cooling water can be heated
To the temperature for the low-temperature corrosion that can prevent engine or greater than the temperature.
Method can also include: 5) compressing the cooling water being discharged from fresh water generator using the second compression unit, will compress
Chilled(cooling) water supply (CWS) to engine.
The cooling water being discharged from engine can be divided into two bursts of water flows, so that some in cooling water are supplied to primary heater
And remaining cooling water bypasses primary heater, and the first triple valve can be placed in and bypass the cooling water of primary heater and wear
The cooling water for crossing primary heater merges place.
When the second compression unit stops, the valve portion of the guiding primary heater of the first triple valve can be closed, and it is surplus
Remaining valve portion can keep in open state.
Algorithm can be established to allow the valve portion of the guiding primary heater of the first triple valve to stop in the second compression unit
When automatically turned off by control panel.
According to another aspect of the present invention, a kind of method for arranging is provided, wherein engine is placed in enging cabin, adjustment
At buffering because cooling water expansion or shrinkage caused by the expansion slot of volume change be placed in above enging cabin 20 meters to 25
At rice distance, heat medium is heated so that the primary heater of liquefied natural gas vaporization is placed in position more higher than expansion slot
Place, and the first triple valve is placed in and has bypassed the cooling water of primary heater and merge it with the cooling water for having passed through primary heater
It sentences and is placed at position more lower than expansion slot.
According to another aspect of the invention, a kind of method is provided, the method is in cooling engine according to following equation
By the heat distribution obtained by cooling water to vaporizer and fresh water generator: Ax+Bz=Ay, wherein A indicates the load of engine,
X indicates the maximum heat for being transferred to the fluid as the heat medium in vaporizer, and B indicates the load of fresh water generator, y instruction
The maximum heat obtained in cooling engine by cooling water, and z instruction is required when the load of fresh water generator is 100%
Heat.
Favourable effect
According to an embodiment of the invention, can be via according between the load of load and fresh water generator for indicating engine
The equation of relationship adjust the load of fresh water generator and will suitably be divided in cooling engine by the heat that cooling water obtains
It is fitted on vaporizer and fresh water generator.
According to an embodiment of the invention, system include primary heater and vaporizer, thus reduce cooler capacity and
Energy for operating cooler.
According to an embodiment of the invention, being stored it in holding tank before reusing superfluous cooling water, thus make
The consumption of pending chemically treated cooling water minimizes.
According to an embodiment of the invention, the device along cooling water-circulation pipe placement is serially connected, wherein in uneasiness
In the case where filling additional compression component, cooling water can be recycled only by the pressure of the second compression unit.
According to an embodiment of the invention, even if can be generated in 100% operation fresh water when engine has compared with underload
Cooling water is heated by secondary heater after device, is achieved in the more effective operation of system.
According to an embodiment of the invention, system and method can while stopping (specifically, the second compression unit) be the
One heater is placed in the structure above expansion slot and prepares.
According to an embodiment of the invention, system and method can efficiently control each device via control panel, and have
Saying to body can automatically prepare when the second compression unit breaks down.
Detailed description of the invention
Fig. 1 is according to the first embodiment of the present invention be ship supply fuel gas system schematic diagram.
Fig. 2 is according to the second embodiment of the present invention be ship supply fuel gas system schematic diagram.
Specific embodiment
Hereinafter with reference to attached drawing detailed description of the present invention exemplary embodiment.It should be understood that following embodiment can be various
Mode is modified and is not limit the scope of the invention.
Fig. 1 is according to the first embodiment of the present invention be ship supply fuel gas system schematic diagram.
It include primary heater (110), vaporizer according to the fuel gas supply system of this embodiment referring to Fig. 1
(180) and fresh water generator (120).
By according to the fuel gas supply system of this embodiment supply fuel engine (E) example may include using
Natural gas is as the ME-GI engine of fuel, X-DF engine, DF engine and similar engine, and according to this implementation
Example fuel gas supply system can be applied to the other burners for using natural gas as fuel, such as combustion gas turbine with
And the like.Herein, it is preferably applied to be used as mainly propulsion according to the fuel gas supply system of this embodiment to start
The ME-GI engine of machine.According to this embodiment, engine (E) is placed in enging cabin.
According to this embodiment, primary heater (110) is discharged after cooling engine (E) from engine (E) cold
But heat is exchanged between water (pipeline L10) and the fluid (pipeline L3) for the heat medium being used as in vaporizer (180).Namely
It says, some be supplied in the heat obtained in cooling engine (E) by cooling water is used as vaporization by primary heater (110)
The fluid (pipeline L3) of heat medium in device (180), so that heating is used as the fluid of the heat medium in vaporizer (180)
(pipeline L3).
Cooling water is being supplied on the pipeline (L10) along primary heater (110) from engine (E), can be disposed
One temperature-control sensor (210) is to adjust from engine (E) cooling water to be supplied to primary heater (110) being discharged
Temperature.According to this embodiment, the first temperature-control sensor (210) can will be from the temperature of engine (E) cooling water being discharged
Adjust about 85 DEG C.
According to this embodiment, because adjusting the temperature for the cooling water being discharged from engine (E) to about 85 DEG C and by sending out
The heat that motivation (E) generates increases as the load of engine (E) increases, so be supplied to the cooling water of engine (E)
Temperature changes according to the load of engine (E).That is, the low-temperature corrosion of engine (E) in order to prevent, is supplied to and starts
The temperature of the cooling water of machine (E) is increased as the load of engine (E) reduces.
According to this embodiment, vaporizer (180) is via the heat medium (pipeline L4) heated with primary heater (110)
Heat exchange between liquefied natural gas makes liquefied natural gas vaporization.That is, vaporizer (180) use is started in cooling
Some in the heat obtained when machine (E) by cooling water make liquefied natural gas vaporization via heat medium.It will be by vaporizer
(180) engine (E) is supplied to for use as fuel via the natural gas (pipeline L1) that the vaporization of liquefied natural gas obtains.As vapour
The fluid for changing the heat medium in device (180) can be ethylene glycol water (glycol water).
According to this embodiment, fresh water generator (120) adds by using by first is discharged and passed through from engine (E)
Some or all heating seawaters of the heat that the cooling water (pipeline L20) of hot device (110) obtains generate fresh water.
Because the heat that can be obtained by cooling water in cooling engine (E) it is proportional to the load of engine (E) and to
The amount of the fuel of consumption increases as the load of engine (E) increases, so the liquefaction to be vaporized by vaporizer (180) is natural
The amount of gas increases also with the load of engine (E) and is increased.Therefore, to be transferred to from primary heater (110) by vaporizer
(180) heat of the fluid as heat medium is also proportional to the load of engine (E).
Therefore, in the load of A instruction engine (E), x instruction is transferred to as the heat medium in vaporizer (180)
The maximum heat of fluid, B indicate the load of fresh water generator (120), and y instruction is obtained in cooling engine (E) by cooling water
Maximum heat, and z instruction, when the load of fresh water generator (120) is 100% when required heat, following equation is set up.
Ax+Bz=Ay
Therefore, the load of fresh water generator is expressed by the following equation: B=(y-x) A/z, and can be by according to this equation
The load for adjusting fresh water generator (120) will be appropriately distributed in cooling engine (E) by the heat that cooling water obtains
Vaporizer (180) and fresh water generator (120).
According to this embodiment, the heat obtained in cooling engine (E) by cooling water is first by primary heater
(110) it uses, and after-heat is used by fresh water generator (120).
The cooling water (pipeline L10) being discharged from engine (E) can be divided into two bursts of water flows, so that in cooling water (pipeline L10)
Some primary heaters (110) and remaining cooling water (pipeline L12) of being transported to around primary heater (110).Bypass
The cooling water (pipeline L12) of one heater (110) can merge with the cooling water (pipeline L20) for having passed through primary heater (110)
To be transported to fresh water generator (120), and the first triple valve (810) can be placed in the cooling for having bypassed primary heater (110)
Water (pipeline L12) merges place with the cooling water (pipeline L20) for having passed through primary heater (110).It, can according to this embodiment
The amount of the cooling water to be delivered to primary heater (110) is adjusted by adjusting the opening degree of the first triple valve (810), by
This can adjust the heat that primary heater (110) are transferred to from cooling water.
Heat medium is being transported on the pipeline (L4) along vaporizer (180) from primary heater (110), can disposed
Temperature sensor (not shown) is to allow to adjust the unlatching journey of the first triple valve (810) according to the temperature thus detected
Degree.Because the temperature for the heat medium supplied along pipeline L4 increases with the amount of the liquefied natural gas to be vaporized by vaporizer (180)
Add and increase, so can be adjusted by adjusting the temperature along the pipeline L4 heat medium supplied to be vaporized by vaporizer (180)
Liquefied natural gas amount, and the cooling water of primary heater (110) can be transported to by being adjusted by the first triple valve (810)
It measures to adjust the temperature of the heat medium along pipeline L4 supply.
In addition, can be operated according to the fuel gas supply system of this embodiment so that the heating along pipeline L4 flowing is situated between
Matter maintains at a constant temperature.Because the temperature for the fluid (pipeline L3) being discharged from vaporizer (180) is being used as vaporizing
Make to reduce after the heat medium of liquefied natural gas vaporization in device (180), so adjusting the opening degree of the first triple valve (810)
To allow thus to heat the fluid for being supplied to primary heater along pipeline L3.
Flow rate and the second valve (720) of opening degree for adjusting fluid can be placed in pipeline (L4), heat
Medium is transported to vaporizer (180) from primary heater (110) along the pipeline (L4).
It can include also air separator (330) according to the fuel gas supply system of this embodiment, be placed in pipeline
(L20) on, be discharged from engine (E) and passed through the cooling water of primary heater (110) be transported to along the pipeline (L20) it is light
Water generator (120).Fresh water production is transported to from from primary heater (110) according to the air separator (330) of this embodiment
Air is removed in the cooling water of raw device (120), is thus prevented various in the fuel gas supply system according to this embodiment
Failure of apparatus.
On the other hand, it is discharged from engine (E) and the cooling water (pipeline L20) for having passed through primary heater (110) can divide
For two bursts of water flows, so that some in cooling water (pipeline L20) are transported to fresh water generator (120), and remaining cooling water (pipeline
L22 fresh water generator (120)) are bypassed.Bypassed fresh water generator (120) cooling water (pipeline L22) can with passed through fresh water
The cooling water (pipeline L30) of generator (120) merges to be transported to engine (E), and the second triple valve (820) can be placed in
Around the cooling water (pipeline L22) of fresh water generator (120) with passed through the cooling water (pipeline L30) of fresh water generator (120)
Merge place.According to this embodiment, can be adjusted by adjusting the opening degree of the second triple valve (820) to be delivered to fresh water
The amount of the cooling water of generator (120), thus, it is possible to adjust the heat that fresh water generator (120) are transferred to from cooling water.
The cooling water being discharged from fresh water generator (120) is being transported on the pipeline (L30) along engine (E), it can
Placement second temperature adjusts sensor (220) to adjust the temperature of cooling water.According to this embodiment, second temperature adjusts sensing
The preset value of device (220) reduces as the load of engine (E) increases.
It can also include cooler (130) according to the fuel gas supply system of this embodiment, reduce from engine (E)
It is discharged and has passed through the temperature of the cooling water of primary heater (110) and fresh water generator (120).Even if when in cooling engine
(E) some in heat are supplied to after primary heater (110) and fresh water generator (120) by the cooling water that heat is obtained when
When the temperature of cooling water does not reduce sufficiently yet, the temperature of cooling water is reduced according to the cooler (130) of this embodiment to permit
Perhaps engine (E) is cooled to the predetermined temperature for engine (E) by cooling water.
In the structure for including cooler (130) according to the fuel gas supply system of this embodiment, generated from fresh water
The cooling water (pipeline L30) of device (120) discharge can be divided into two bursts of water flows, so that some in cooling water (pipeline L30) are transported to
Cooler (130) and remaining cooling water (pipeline L32) is around subcooler (130).Around the cooling water (pipe of subcooler (130)
Line L32) it can merge with the cooling water (L40) for having passed through cooler (130) to be transported to engine (E), and third triple valve
(830) it can be placed in around the cooling water (pipeline L32) of subcooler (130) and the cooling water (pipe for having passed through cooler (130)
Line L40) merge place.It, can be to be conveyed to adjust by adjusting the opening degree of third triple valve (830) according to this embodiment
To the amount of the cooling water of cooler (130), thus, it is possible to adjust by the degree of cooler (130) cooling cooling water.
Conventional system allows by chilled(cooling) water supply (CWS) to engine (E) after cooling cooler (130), rather than uses cold
But the heat of water carrys out heats liquefied natural gas, however includes primary heater according to the fuel gas supply system of this embodiment
(110) and vaporizer (180), to allow after the heat using cooling water carrys out heats liquefied natural gas only when needed by cold
But the cooling cooling water of device (130) thus reduces the capacity of cooler (130) and is used for the energy of operating cooler (130).
In the structure for including cooler (130) according to the fuel gas supply system of this embodiment, start in cooling
The heat obtained when machine (E) by cooling water is used by primary heater (110) first and is secondly made by fresh water generator (120)
With, and cooled down using cooler (130) by remaining heat after fresh water generator (120) use.
In the structure for including cooler (130) according to the fuel gas supply system of this embodiment, third temperature tune
Section sensor (230) can be placed on pipeline (L40) temperature for adjusting cooling water, the cooling water being discharged from cooler (130)
Engine (E) is transported to along the pipeline (L40).According to this embodiment, the preset value of third temperature-control sensor (230)
As the load of engine (E) increases and reduce.
It can also include holding tank (160), expansion slot (170) and sky according to the fuel gas supply system of this embodiment
At least one of slot (140) are discharged in gas.
It is stored according to the holding tank (160) of this embodiment and is not transported among the cooling water for cooling down engine (E)
The cooling water of primary heater (110), and some in the cooling water being stored in holding tank (160) can transport expansion slot
(170) (pipeline L50).According to this embodiment, because superfluous cooling water is stored in holding tank (160) to make again
With so fuel gas supply system can be such that the consumption of pending chemically treated cooling water minimizes.
According to this embodiment, expansion slot (170) is to body caused by by absorbing the expansion or shrinkage because of cooling water
Product changes to improve the stability of system, and to apply pressure for the circulation of cooling water.Expansion slot (170) is received from holding tank
(160) cooling water supplied and the air being discharged from air discharge slot (140).It is excessively risen in the internal pressure of expansion slot (170)
Gao Shi, gas can be discharged along gas discharge pipe line (L2) from expansion slot (170).
According to this embodiment, expansion slot (170) is mountable at about 20 meters to 25 meters distances, to be started above enging cabin
Machine (E) is placed in the enging cabin.If the mounting distance of the expansion slot (170) above enging cabin is more than 25 meters, that
The pressure for being supplied to the cooling water of engine (E) is more than predetermined pressure.The mounting distance of expansion slot (170) can be according to engine
(E) temperature of the cooling water needed for and change.Because the pressure reduction of cooling water can cause, bubble is generated and bubble generates pressure
Changed according to the temperature of cooling water, so determining expansion slot (170) according to the temperature of cooling water needed for engine (E)
Mounting distance is to prevent the bubble in cooling water from generating.
According to this embodiment, air discharge slot (140) will be transported to engine (E) from from fresh water generator (120)
The air obtained in cooling water is discharged to expansion slot (170), and to mitigate the temperature change because of fluid caused by quick body
The influence of product variation.The cooling water that engine (E) is transported to from fresh water generator (120) can be temporarily stored in air row
Engine (E) is transported to later in slot (140) out.
It can include also the first compression unit (410) according to the fuel gas supply system of this embodiment, be placed in pipe
On line (L50), the cooling water being discharged from holding tank (160) is supplied to expansion slot (170) along the pipeline (L50).
It can be with the of the water level for being adapted to adjust holding tank (160) according to the first compression unit (410) of this embodiment
One level adjuster (310) and the second level adjuster (320) for being adapted to adjust the water level of expansion slot (170) are grasped in association
Make.That is, the first compression unit (410) reaches pre- through operating with the water level in holding tank (160) according to this embodiment
Definite value or when being greater than predetermined value or when the water level of expansion slot (170) reaches predetermined value or is less than predetermined value by holding tank (160)
Cooling water be transported to expansion slot (170).
It can also include at least one of the following: the second compression unit according to the fuel gas supply system of this embodiment
(420), the cooling water that is discharged from fresh water generator (120) of compression is with the chilled(cooling) water supply (CWS) that will compress to engine (E)；And
First valve (710) is placed on pipeline (L10), and cooling water is supplied to first from engine (E) along the pipeline (L10) and adds
Hot device (110) is to prevent cooling water from flowing back.
According to this embodiment, it is possible to provide multiple second compression units (420) are to be connected in parallel, and second compression is single
First (420) can compress cooling water under about 3 bars of pressure.According to this embodiment, the second compression unit (420) compressible cooling
Water with meet the circulation for cooling water pressure and engine (E) needed for pressure.
In the structure for including the second compression unit (420) according to the fuel gas supply system of this embodiment, in accordance with
It is desirable that being placed in the device that will be supplied to again on the pipeline along engine (E) from the cooling water that engine (E) is discharged
It is serially connected, to allow cooling water in the case where not installing additional compression component merely with from the second compression unit
(420) pressure and recycle.
According to this embodiment, the first valve (710) prevent because when the second compression unit (420) stop from engine (E)
It is supplied to the pressure reduction of the cooling water of primary heater (110) and cooling water is caused to flow back.
It can also include secondary heater (150) according to the fuel gas supply system of this embodiment, heat from fresh water
The cooling water to be supplied to engine (E) of generator (120) discharge.According to this embodiment, secondary heater (150) via
Cooling water is heated in heat exchange between steam and cooling water.Third valve (730) can be placed on the pipeline along supply steam,
And the amount of steam can be adjusted by adjusting the opening degree of third valve (730), thus, it is possible to adjust the degree of heating cooling water.
According to this embodiment, secondary heater (150) is to be heated to predetermined temperature for cooling water or be greater than predetermined temperature
Degree, so that can prevent the chilled(cooling) water supply (CWS) of heating to engine (E) when not operating engine (E) during ship anchorage
The only low-temperature corrosion of engine (E).In general, it according to this embodiment, is not grasped during the operation of secondary heater (150)
Make cooler (130).
In the structure for including secondary heater (150) according to the fuel gas supply system of this embodiment, even if
Cooling water ready for use can also 100% operation fresh water generator when the load of engine (E) is lower to have more low in calories
(120).Routinely, when engine (E) has compared with underload, because 100% operation fresh water generator (120) to be supplied to
The temperature of the cooling water of engine (E) is too low to prevent the corrosion low temperature of engine (E), thus can not 100% operation it is light
Water generator (120).However, according to the present invention, even if still operating fresh water 100% when engine (E) has compared with underload
Cooling water is heated to by secondary heater (150) temperature of the low-temperature corrosion of engine (E) can be prevented after generator (120)
Degree, can more effectively operate fuel gas supply system.
In the structure for including secondary heater (150) according to the fuel gas supply system of this embodiment, from fresh water
The cooling water of generator (120) discharge can be divided into two bursts of water flows so that some in cooling water (pipeline L60) be transported to second plus
Hot device (150) and remaining cooling water (pipeline L62) bypasses secondary heater (150).The cooling of secondary heater (150) is bypassed
Water (pipeline L62) can merge with the cooling water (L60) for having passed through secondary heater (150) to be transported to engine (E), and the 4th
Valve (740) can be placed on pipeline (L62), and the cooling water for having bypassed secondary heater (150) is flowed along the pipeline (L62).
According to this embodiment, can be adjusted by adjusting the opening degree of the 4th valve (740) to be delivered to secondary heater (150)
The amount of cooling water, thus, it is possible to adjust by the degree of secondary heater (150) heating cooling water.
It is including cooler (130), air discharge slot (140), the according to the fuel gas supply system of this embodiment
In whole structures in two compression units (420) and secondary heater (150), cooler (130) can be placed in fresh water production
The downstream of raw device (120), air discharge slot (140) can be placed in the downstream of cooler (130), and the second compression unit (420) can
It is placed in the downstream of air discharge slot (140), secondary heater (150) can be placed in the downstream of the second compression unit (420), and
Engine (E) can be placed in the downstream of secondary heater (150).
It also include the first triple valve (810), the second triple valve (820), third triple valve in fuel gas supply system
(830), third valve (730), the first temperature-control sensor (210), second temperature adjust sensor (220) and third temperature
In the embodiment for adjusting at least one of sensor (230), the first triple valve (810), second can be controlled by control panel (C)
Triple valve (820), third triple valve (830), third valve (730), the first temperature-control sensor (210), second temperature are adjusted
The operation of each of sensor (220) and third temperature-control sensor (230).
According to this embodiment, control panel (C) is obtained via based on each of the device by being connected to control panel (C)
Information and each of device state and to the operational circumstances of system carry out global analysis come it is every in control device
One.
It, can be to the pipeline that cooling water flows through (by double in Fig. 1 in the fuel gas supply system according to this embodiment
Dotted line instruction) insulation process is carried out, to use the heat from engine (E) cooling water being discharged without losing as much as possible
Heat.
Fig. 2 is according to the second embodiment of the present invention be ship supply fuel gas system schematic diagram.
Implement shown in fuel gas supply system according to the second embodiment and Fig. 1 shown in Fig. 2 according to first
The fuel gas supply system of example is the difference is that fuel gas supply system according to the second embodiment includes to be placed in
Primary heater (110) above expansion slot (170), and include also third compression unit (190), and be described below and will focus on
The different characteristic of fuel gas supply system according to the second embodiment.It will omit and be supplied with fuel gas according to first embodiment
Answer the detailed description of the identical component of the component of system.
It include primary heater (110), vaporizer according to the fuel gas supply system of this embodiment referring to Fig. 2
(180) and fresh water generator (120), with first embodiment.
With first embodiment, by the engine for supplying fuel according to the fuel gas supply system of this embodiment
(E) example may include using natural gas as the ME-GI engine of fuel, X-DF engine, DF engine and similar hair
Motivation, and can be applied to that natural gas is used to fill as other burnings of fuel according to the fuel gas supply system of this embodiment
It sets, such as combustion gas turbine and the like.With first embodiment, system is supplied according to the fuel gas of this embodiment
System is preferably applied to the ME-GI engine as main propelling motor.According to this embodiment, engine (E) is placed in
In enging cabin, with first embodiment.
With first embodiment, it is being discharged according to the primary heater (110) of this embodiment from engine (E)
Heat is exchanged between cooling water (pipeline L10) and the fluid (pipeline L3) for the heat medium being used as in vaporizer (180).Namely
It says, it, will be in cooling engine (E) Shi Youleng according to the primary heater (110) of this embodiment with first embodiment
But water obtain heat in it is some be supplied to the fluid (pipeline L3) as the heat medium in vaporizer (180), thus plus
Heat is used as the fluid (pipeline L3) of the heat medium in vaporizer (180).
Cooling water is being supplied on the pipeline (L10) along primary heater (110) from engine (E), can be disposed
One temperature-control sensor (210) is to adjust from engine (E) cooling water to be supplied to primary heater (110) being discharged
Temperature such as, with first embodiment.According to this embodiment, the first temperature-control sensor (210) can will be from engine
(E) temperature for the cooling water being discharged is adjusted to about 85 DEG C, with first embodiment.
It according to this embodiment, will adjust from the temperature of engine (E) cooling water being discharged to about 85 DEG C, and be supplied to hair
The temperature of the cooling water of motivation (E) changes according to the load of engine (E), with first embodiment.That is, being
It prevents engine (E) from low-temperature corrosion occur as engine (E) load reduces, is supplied to the cooling water of engine (E)
Temperature increases.
According to this embodiment, vaporizer (180) is via the heat medium (pipeline L4) heated with primary heater (110)
Heat exchange between liquefied natural gas makes liquefied natural gas vaporization, with first embodiment.That is, vaporizer
(180) using some natural to make to liquefy via heat medium in the heat obtained in cooling engine (E) by cooling water
Gas vaporization, with first embodiment.Natural gas (the pipe that will be obtained by vaporizer (180) via the vaporization of liquefied natural gas
Line L1) engine (E) is supplied to for use as in fuel, with first embodiment.As the heat medium in vaporizer (180)
Fluid can be ethylene glycol water, with first embodiment.
According to this embodiment, fresh water generator (120) adds by using by first is discharged and passed through from engine (E)
Some or all heating seawaters for the heat that the cooling water (pipeline L20) of hot device (110) obtains generate fresh water, implement with first
It is the same in example.
With first embodiment, in the load of A instruction engine (E), x instruction is transferred to as vaporizer (180)
In heat medium fluid maximum heat, B indicates the load of fresh water generator (120), and y instruction is at cooling engine (E)
When the maximum heat that is obtained by cooling water, and z instruction is when the load of fresh water generator (120) is 100% when required heat,
Following equation is set up.
Ax+Bz=Ay
Therefore, the load of fresh water generator is expressed by the following equation: B=(y-x) A/z, and can be by according to this equation
The load for adjusting fresh water generator (120) will be appropriately distributed in cooling engine (E) by the heat that cooling water obtains
Vaporizer (180) and fresh water generator (120).
According to this embodiment, the heat obtained in cooling engine (E) by cooling water is first by primary heater
(110) it uses, and after-heat is used by fresh water generator (120), with first embodiment.
With first embodiment, the cooling water (pipeline L10) being discharged from engine (E) can be divided into two bursts of water flows, make
Some in cooling water (pipeline L10) be transported to primary heater (110) and remaining cooling water (pipeline L12) around first plus
Hot device (110).Bypassed primary heater (110) cooling water (pipeline L12) can with passed through the cold of primary heater (110)
But water (pipeline L20) merges to be transported to fresh water generator (120), and the first triple valve (810) can be placed in and bypass first
The cooling water (pipeline L12) of heater (110) merges place with the cooling water (pipeline L20) for having passed through primary heater (110),
With first embodiment.According to this embodiment, can be adjusted by adjusting the opening degree of the first triple valve (810) to
It is transported to the amount of the cooling water of primary heater (110), thus, it is possible to adjust from cooling water to be transferred to primary heater (110)
In heat, with first embodiment.
Heat medium is being transported on the pipeline (L4) along vaporizer (180) from primary heater (110), can disposed
Temperature sensor (not shown) is to allow to adjust the unlatching journey of the first triple valve (810) according to the temperature thus detected
Degree, with first embodiment.
In addition, can be operated according to the fuel gas supply system of this embodiment so that the heating along pipeline L4 flowing is situated between
Matter maintains at a constant temperature, with first embodiment.
Flow rate and the second valve (720) of opening degree for adjusting fluid can be placed in pipeline (L4), heat
Medium is transported to vaporizer (180) from primary heater (110) along the pipeline (L4), with first embodiment.
It can include also air separator (330) according to the fuel gas supply system of this embodiment, be placed in pipeline
(L20) on, be discharged from engine (E) and passed through the cooling water of primary heater (110) be transported to along the pipeline (L20) it is light
Water generator (120), with first embodiment.It is heated according to the air separator (330) of this embodiment from from first
Device (110) is transported in the cooling water of fresh water generator (120) and removes air, thus prevents in the system according to this embodiment
The various failure of apparatus for including, with first embodiment.
With first embodiment, the cooling water (pipe of primary heater (110) is discharged and passed through from engine (E)
Line L20) two bursts of water flows can be divided into, so that some in cooling water (pipeline L20) are transported to fresh water generator (120), and remaining
Cooling water (pipeline L22) bypasses fresh water generator (120).With first embodiment, fresh water generator (120) has been bypassed
Cooling water (pipeline L22) can merge with the cooling water (pipeline L30) for having passed through fresh water generator (120) to be transported to engine
(E), and the second triple valve (820) can be placed in bypassed the cooling water (pipeline L22) of fresh water generator (120) with passed through it is light
The cooling water (pipeline L30) of water generator (120) merges place.It, can be by adjusting the second triple valve according to this embodiment
(820) opening degree adjusts the amount of the cooling water to be delivered to fresh water generator (120), and thus, it is possible to adjust from cooling water
It is transferred to the heat of fresh water generator (120), with first embodiment.
The cooling water being discharged from fresh water generator (120) is being transported on the pipeline (L30) along engine (E), it can
Placement second temperature adjusts sensor (220) to adjust the temperature of cooling water, with first embodiment.According to this implementation
Example, the preset value that second temperature adjusts sensor (220) reduces as the load of engine (E) increases, with first embodiment
In it is the same.
It can also include cooler (130) according to the fuel gas supply system of this embodiment, reduce from engine (E)
It is discharged and has passed through the temperature of the cooling water of primary heater (110) and fresh water generator (120), in first embodiment one
Sample.Even if some in heat are supplied to primary heater (110) when obtaining the cooling water of heat in cooling engine (E)
When not reduced sufficiently yet with the temperature of cooling water after fresh water generator (120), dropped according to the cooler (130) of this embodiment
The temperature of low cooling water is to allow cooling water that engine (E) is cooled to predetermined temperature, with first embodiment.
In the structure for including cooler (130) according to the fuel gas supply system of this embodiment, generated from fresh water
The cooling water (pipeline L30) of device (120) discharge can be divided into two bursts of water flows, so that some in cooling water (pipeline L30) are transported to
Cooler (130) and remaining cooling water (pipeline L32) is around subcooler (130), with first embodiment.Around supercooling
The cooling water (pipeline L32) of device (130) can merge with the cooling water (pipeline L40) for having passed through cooler (130) to be transported to hair
Motivation (E), and third triple valve (830) can be placed in around the cooling water (pipeline L32) of subcooler (130) with passed through it is cold
But the cooling water (pipeline L40) of device (130) merges place, with first embodiment.According to this embodiment, tune can be passed through
The opening degree of third triple valve (830) is saved to adjust the amount of the cooling water to be delivered to cooler (130), thus, it is possible to adjust
By the degree of cooler (130) cooling cooling water, with first embodiment.
The capacity of cooler (130) can be reduced according to the fuel gas supply system of this embodiment and for operating cooling
The energy of device (130), with first embodiment.
In the structure for including cooler (130) according to the fuel gas supply system of this embodiment, start in cooling
The heat obtained when machine (E) by cooling water is used by primary heater (110) first and is secondly made by fresh water generator (120)
With, and cooled down by remaining heat after fresh water generator (120) use, in first embodiment using cooler (130)
Equally.
In the structure for including cooler (130) according to the fuel gas supply system of this embodiment, third temperature tune
Section sensor (230) can be placed on pipeline (L40) temperature for adjusting cooling water, the cooling water being discharged from cooler (130)
It is transported to engine (E) along the pipeline (L40), with first embodiment.According to this embodiment, third temperature is adjusted
The preset value of sensor (230) reduces as the load of engine (E) increases, with first embodiment.
It can also include holding tank (160), expansion slot (170) and sky according to the fuel gas supply system of this embodiment
At least one of slot (140) are discharged in gas.
It is stored according to the holding tank (160) of this embodiment and is not transported among the cooling water for cooling down engine (E)
The cooling water of primary heater (110), and some in the cooling water being stored in holding tank (160) can transport expansion slot
(170) in (pipeline L50), with first embodiment.According to this embodiment, fuel gas supply system can make pendingization
The consumption for learning the cooling water of processing minimizes, with first embodiment.
According to this embodiment, expansion slot (170) is to body caused by by absorbing the expansion or shrinkage because of cooling water
Product variation improves the stability of system, and in circulation the application pressure, with first embodiment for cooling water.Expansion
The air that slot (170) receives the cooling water supplied from holding tank (160) and is discharged from air discharge slot (140) is implemented with first
It is the same in example.When the internal pressure of expansion slot (170) excessively increases, gas can be along gas discharge pipe line (L2) from expansion slot
(170) it is discharged, with first embodiment.
According to this embodiment, expansion slot (170) is mountable at about 20 meters to 25 meters distances, to be started above enging cabin
Machine (E) is placed in the enging cabin, with first embodiment.
It can also include third compression unit according to the fuel gas supply system of this embodiment different from first embodiment
(190), being placed in will be on the pipeline along from the chilled(cooling) water supply (CWS) that engine (E) is discharged to primary heater (110).According to
The third compression unit (190) of this embodiment provides to wherein primary heater (110) that be mounted on obstruction effective by cooling water
Ground is supplied to the structure at the high height of primary heater (110), specifically, providing to wherein the second compression unit
(420) it provides and is not enough to the structure of the pressure of chilled(cooling) water supply (CWS) to primary heater (110).
Slot (140), which will be discharged, according to the air of this embodiment to be transported to engine (E) from from fresh water generator (120)
The air obtained in cooling water is discharged to expansion slot (170), and to mitigate the temperature change because of fluid caused by quick body
The influence of product variation, with first embodiment.The cooling water of engine (E) can will be transported to from fresh water generator (120)
It is transported to engine (E) after being temporarily stored in air discharge slot (140), with first embodiment.
It can include also the first compression unit (410) according to the fuel gas supply system of this embodiment, be placed in pipe
On line (L50), the cooling water being discharged from holding tank (160) is supplied to expansion slot (170) along the pipeline (L50), real with first
It applies the same in example.
It can be with the of the water level for being adapted to adjust holding tank (160) according to the first compression unit (410) of this embodiment
One level adjuster (310) and the second level adjuster (320) for being adapted to adjust the water level of expansion slot (170) are grasped in association
Make, with first embodiment.That is, the first compression unit (410) is operated to store according to this embodiment
When the water level of slot (160) reaches predetermined value or is greater than predetermined value or reaches predetermined value in the water level of expansion slot (170) or be less than pre-
The cooling water of holding tank (160) is transported to expansion slot (170) when definite value, with first embodiment.
It can also include at least one of the following: the second compression unit according to the fuel gas supply system of this embodiment
(420), the cooling water that is discharged from fresh water generator (120) of compression is with the chilled(cooling) water supply (CWS) that will compress to engine (E)；And
First valve (710) is placed on pipeline (L10), and cooling water is supplied to first from engine (E) along the pipeline (L10) and adds
Hot device (110) is to prevent cooling water from flowing back, with first embodiment.
According to this embodiment, it is possible to provide multiple second compression units (420) are to be connected in parallel, and second compression is single
First (420) can compress cooling water under about 3 bars of pressure, with first embodiment.According to this embodiment, the second compression
Unit (420) compressible cooling water with meet the circulation for cooling water pressure and engine (E) needed for pressure, with
It is the same in one embodiment.
In the structure for including the second compression unit (420) according to the fuel gas supply system of this embodiment, in accordance with
It is desirable that being placed in the device that will be supplied to again on the pipeline along engine (E) from the cooling water that engine (E) is discharged
It is serially connected, to allow cooling water in the case where not installing additional compression component merely with from the second compression unit
(420) pressure and recycle, with first embodiment.
According to this embodiment, the first valve (710) prevent because when the second compression unit (420) stop from engine (E)
It is supplied to the pressure reduction of the cooling water of primary heater (110) and cooling water is caused to flow back, with first embodiment.
It can also include secondary heater (150) according to the fuel gas supply system of this embodiment, heat from fresh water
The cooling water to be supplied to engine (E) of generator (120) discharge, with first embodiment.According to this embodiment,
Secondary heater (150) heats cooling water via the heat exchange between steam and cooling water, with first embodiment.The
Three valves (730) can be placed on the pipeline along supply steam, and can be adjusted by adjusting the opening degree of third valve (730)
The amount of steam, thus, it is possible to adjust the degree of heating cooling water, with first embodiment.
According to this embodiment, secondary heater (150) is to be heated to predetermined temperature for cooling water or be greater than predetermined temperature
Degree, so that can prevent the chilled(cooling) water supply (CWS) of heating to engine (E) when not operating engine (E) during ship anchorage
The only low-temperature corrosion of engine (E), with first embodiment.In general, according to this embodiment, in secondary heater
(150) not operating cooler (130) during operation.
In the structure for including secondary heater (150) according to the fuel gas supply system of this embodiment, even if
Cooling water ready for use can also 100% operation fresh water generator when the load of engine (E) is lower to have more low in calories
(120), in first embodiment.According to the present invention, even if when engine (E) has compared with underload, still in 100% behaviour
Make to be heated to cooling water by secondary heater (150) the low temperature corruption of engine (E) can be prevented after fresh water generator (120)
The temperature of erosion, can more effectively operate in fuel gas supply system, with first embodiment.
In the structure for including secondary heater (150) according to the fuel gas supply system of this embodiment, from fresh water
The cooling water of generator (120) discharge can be divided into two bursts of water flows so that some in cooling water (pipeline L60) be transported to second plus
Hot device (150) and remaining cooling water (pipeline L62) bypasses secondary heater (150), with first embodiment.Bypass
The cooling water (pipeline L62) of two heaters (150) can merge with the cooling water (pipeline L60) for having passed through secondary heater (150)
To be transported to engine (E), and the 4th valve (740) can be placed on pipeline (L62), bypass the cold of secondary heater (150)
But water is flowed along the pipeline (L62), with first embodiment.It, can be by adjusting the 4th valve according to this embodiment
(740) opening degree adjusts the amount of the cooling water to be delivered to secondary heater (150), thus, it is possible to adjusting by second plus
The degree of hot device (150) heating cooling water, with first embodiment.
It is including expansion slot (170) according to the fuel gas supply system of this embodiment different from first embodiment
In structure, primary heater (110) is mounted at position more higher than expansion slot (170).In general, in ship according to this reality
In the actual arrangement for applying the component of the fuel gas supply system of example, it is difficult to which primary heater (110) is mounted on enging cabin
In, and primary heater must be placed at position more higher than expansion slot (170).
In addition, including expansion slot (170) and the first triple valve according to the fuel gas supply system of this embodiment
(810) in structure, the first triple valve (810) be can be placed at position more lower than expansion slot (170).
According to this embodiment, when the second compression unit (420) stop, the guiding first of the first triple valve (810) adds
The valve portion (the upper side valve portion in Fig. 2) of hot device (110) can close, and the guiding pipeline L12 of the first triple valve (810) and
The valve portion (left side valve portion and lower side valve portion in Fig. 2) of fresh water generator (120) can be kept it turning on.
According to this embodiment, in the valve portion (in Fig. 2 of the guiding primary heater (110) of the first triple valve (810)
Upper side valve portion) close when, even if the circulation for cooling water pressure because make the second compression unit (420) stopping due to dropping
When low, it is possible to the first triple valve for preventing primary heater (110) and being placed at position more lower than expansion slot (170)
(810) cooling water and the pressure loss in pipeline (pipeline L20) between.
In addition, in the guiding pipeline L12 of the first triple valve (810) and the valve portion of fresh water generator (120) (in Fig. 2
Left side valve portion and lower side valve portion) when keeping it turning on, even if stopping the second compression unit (420) to allow from engine
(E) when being supplied to the cooling water reflux of primary heater (110), the first valve (710) is prevented from cooling water and flows back into engine
(E) it (in the structure for including third compression unit (190) according to the fuel gas supply system of this embodiment, also prevents cold
But water flows back towards third compression unit (190)) it will be from primary heater (110) via pipeline L12 and the first triple valve (810)
The cooling water of reflux is transported to fresh water generator (120).
If the first triple valve (810) is placed at position more higher than expansion slot (170), even when in the first threeway
When the valve portion (the upper side valve portion in Fig. 2) of the guiding primary heater (110) of valve (810) is closed, the second compression unit
(420) failure can still cause pressure reduction to be to cause in cooling water close to steam pressure and because generating vacuum in pipeline
Bubble is generated, thus the hardness of pipeline is had adverse effect.In addition, the pressure or flow rate of cooling water can promptly drop
It is low, thereby increases and it is possible to generate water hammer (Water Hammering) phenomenon.
If primary heater (110) can be arranged as lower than expansion slot (170), even when in the second compression unit
(420) it when failing, also needs not worry about in the pipeline (pipeline L20) between primary heater (110) and the first triple valve (810)
Generate vacuum.However, primary heater is inevitably placed in the structure above expansion slot in ship, the first triple valve
(810) it is arranged as lower than expansion slot to prevent primary heater (110) and the first threeway when the second compression unit (420) fail
Vacuum is generated in pipeline (pipeline L20) between valve (810).
Therefore, water hammer (Water Hammering) phenomenon can be prevented according to the fuel gas supply system of this embodiment
With failure of apparatus caused by the reflux because of cooling water.
It is including cooler (130), air discharge slot (140), the according to the fuel gas supply system of this embodiment
In whole structures in two compression units (420) and secondary heater (150), cooler (130) can be placed in fresh water production
The downstream of raw device (120), air discharge slot (140) can be placed in the downstream of cooler (130), and the second compression unit (420) can
It is placed in the downstream of air discharge slot (140), secondary heater (150) can be placed in the downstream of the second compression unit (420), and
Engine (E) can be placed in the downstream of secondary heater (150), with first embodiment.
It also include the first triple valve (810), the second triple valve (820), third triple valve in fuel gas supply system
(830), third valve (730), the first temperature-control sensor (210), second temperature adjust sensor (220) and third temperature
In the embodiment for adjusting at least one of sensor (230), the first triple valve (810), second can be controlled by control panel (C)
Triple valve (820), third triple valve (830), third valve (730), the first temperature-control sensor (210), second temperature are adjusted
The operation of each of sensor (220) and third temperature-control sensor (230), with first embodiment.
According to this embodiment, control panel (C) is obtained via based on each of the device by being connected to control panel (C)
Information and each of device state and to the operational circumstances of system carry out global analysis come it is every in control device
One, with first embodiment.
Specifically, establishing the algorithm of fuel gas supply system in the second compression unit according to this embodiment
(420) valve portion (the upper side valve portion in Fig. 2 of the guiding primary heater (110) of the first triple valve (810) is closed when stopping
Point), thus, it is possible to cope with the failure etc. of the second compression unit (420) automatically via control panel (C).
It, can be to the pipeline that cooling water flows through (by double in Fig. 1 in the fuel gas supply system according to this embodiment
Dotted line instruction) insulation process is carried out, to use the heat from engine (E) cooling water being discharged without losing as much as possible
Heat.
It will be apparent to those skilled in the art that the present invention is not limited to embodiments described above and can not take off
It carry out various modifications, change in the case where from the spirit and scope of the present invention, changing and equivalent embodiment.
Claims (31)
1. a kind of system for supplying fuel gas for ship, comprising:
Vaporizer makes liquefied natural gas vaporization so that the liquefied natural gas is supplied to engine；
Primary heater, via after the cooling engine from the engine be discharged cooling water and heat medium between
Heat exchange heat the fluid as the heat medium in the vaporizer；And
Fresh water generator passes through the heat with the cooling water for having passed through the primary heater after engine discharge
Some or all heating seawaters in source generate fresh water,
Wherein the vaporizer passes through between the heat medium heated by the primary heater and the liquefied natural gas
Heat exchange make the liquefied natural gas vaporization.
2. the system according to claim 1 for supplying fuel gas for ship, further includes: expansion slot is absorbed by described cold
But volume change caused by the expansion or shrinkage of water.
3. the system according to claim 2 for supplying fuel gas for ship, wherein the engine is placed in engine
In cabin, and the expansion slot is placed in above the enging cabin at 20 meters to 25 meters distances.
4. the system according to claim 2 for supplying fuel gas for ship, wherein the primary heater is placed in ratio
At the higher position of expansion slot.
5. the system according to claim 1 for supplying fuel gas for ship, further includes: secondary heater is heated from institute
State the cooling water to be supplied to the engine of fresh water generator discharge.
6. the system according to claim 2 for supplying fuel gas for ship, wherein from described in engine discharge
Cooling water is divided into two bursts of water flows, so that some in the cooling water are supplied to the primary heater and the remaining cooling
Water bypasses the primary heater,
The system also includes:
First triple valve is placed in the cooling water for having bypassed the primary heater and has passed through the primary heater
The cooling water merges place.
7. the system according to claim 6 for supplying fuel gas for ship, wherein first triple valve is placed in ratio
At the lower position of expansion slot.
8. the system according to claim 1 for supplying fuel gas for ship, further includes: cooler makes to start from described
The cooling water that the primary heater and the fresh water generator have been passed through after machine discharge is cooling.
9. the system according to claim 8 for supplying fuel gas for ship, further includes:
Third temperature-control sensor, being placed in will be from the chilled(cooling) water supply (CWS) that the cooler is discharged to engine institute
On the pipeline on edge, so that the temperature of the cooling water is adjusted,
Wherein the preset value of the third temperature-control sensor reduces as the load of the engine increases.
10. the system according to claim 8 for supplying fuel gas for ship, wherein in the cooling engine by institute
The heat source for stating cooling water acquisition is used by the primary heater first and is secondly used by the fresh water generator, and benefit
It is cooled down with the cooler by remaining heat after the fresh water generator use.
11. the system according to claim 2 for supplying fuel gas for ship, further includes: holding tank is stored for cooling down
The remaining cooling water of the primary heater is not transported among the cooling water of the engine.
12. the system according to claim 11 for supplying fuel gas for ship, further includes:
First compression unit is placed in the pipe along the chilled(cooling) water supply (CWS) to the expansion slot that will be discharged from the holding tank
On line,
Reach or be less than predetermined value when the liquid level of the holding tank reaches or surpasses predetermined value or in the liquid level of the expansion slot
When operate first compression unit.
13. it is according to claim 1 for ship supply fuel gas system, further includes: the second compression unit, compression from
The cooling water of fresh water generator discharge is with the chilled(cooling) water supply (CWS) that will compress to the engine.
14. the system according to claim 13 for supplying fuel gas for ship, further includes: the first valve, described second
Compression unit prevents the cooling water reflux that the primary heater is supplied to from the engine when stopping.
15. it is according to claim 13 for ship supply fuel gas system, wherein the vaporizer, described first plus
Hot device, the fresh water generator and second compression unit are serially connected to allow the cooling water only by described
Two compression units circulation.
16. also being wrapped to the system for described in any one of claim 15 being ship supply fuel gas according to claim 1
Include: third compression unit is placed in along the chilled(cooling) water supply (CWS) to the primary heater that will be discharged from the engine
Pipeline on.
17. according to claim 1 to the system for described in any one of claim 15 being ship supply fuel gas, wherein institute
Stating fresh water generator has the load being expressed by the following equation: B=(y-x) A/z, wherein A indicates the load of the engine, x
Indicate the maximum heat for being transferred to the fluid as the heat medium in the vaporizer, B indicates the fresh water production
The load of raw device, y indicates the maximum heat obtained in the cooling engine by the cooling water, and z instruction is described light
The load of water generator heat required when being 100%.
18. also being wrapped to the system for described in any one of claim 15 being ship supply fuel gas according to claim 1
It includes:
At least one first temperature-control sensor, being placed in will be from the chilled(cooling) water supply (CWS) that the engine is discharged to described
So that the cooling water maintains at a constant temperature on pipeline along primary heater；And second temperature adjusts sensor,
Be placed in by from the pipeline along the chilled(cooling) water supply (CWS) to the engine that the fresh water generator is discharged to adjust
The temperature of cooling water is stated,
The preset value that wherein second temperature adjusts sensor reduces as the load of the engine increases.
19. also being wrapped to the system for described in any one of claim 15 being ship supply fuel gas according to claim 1
Include: air separator, the chilled(cooling) water supply (CWS) of the primary heater will be discharged from the engine and has passed through by being placed in
Onto the pipeline along the fresh water generator, to remove air from the cooling water.
20. also being wrapped to the system for described in any one of claim 15 being ship supply fuel gas according to claim 1
Include: slot is discharged in air, and the air from the cooling water that the fresh water generator is transported to the engine is discharged.
21. according to claim 1 to the system for described in any one of claim 15 being ship supply fuel gas, wherein right
Part or all for the pipeline that cooling water flows through carries out insulation process.
22. a kind of method for supplying fuel gas for ship, comprising:
1) using primary heater via the cooling water and heat medium being discharged after cooling engine from the engine it
Between heat exchange heat the heat medium；
2) make via the heat exchange between the heat medium and liquefied natural gas heated by the heat exchange in step 1)
The liquefied natural gas vaporization；
It 3) will be in the middle natural gas supply vaporized of step 2) to the engine；And
4) utilize fresh water generator by using the cooling water by the heat exchange for the heat medium in step 1)
Some or all heating seawaters of the heat source of acquisition generate fresh water.
23. the method according to claim 22 for supplying fuel gas for ship, further includes: 5) heating institute in step 4)
State the cooling water used in fresh water generator.
24. the method according to claim 23 for supplying fuel gas for ship, wherein in step 5), do not operating
When the engine, cooling water heating is reached or surpassed to the temperature for the low-temperature corrosion that can prevent the engine.
25. the method according to claim 23 for supplying fuel gas for ship, wherein in step 5), determining
The temperature of the cooling water falls below and can prevent described start after the 100% operation fresh water generator in step 4)
When the temperature of the low-temperature corrosion of machine, cooling water heating is reached or surpassed after the 100% operation fresh water generator
It can prevent the temperature of the low-temperature corrosion of the engine.
26. the method according to claim 22 for supplying fuel gas for ship, further includes: 5) utilize the second compression unit
The cooling water being discharged from the fresh water generator is compressed, by the chilled(cooling) water supply (CWS) of the compression to the engine.
27. the method according to claim 26 for supplying fuel gas for ship, wherein the institute being discharged from the engine
It states cooling water and is divided into two bursts of water flows, so that some in the cooling water are supplied to the primary heater and remaining described cold
But water bypasses the primary heater, and the first triple valve can be placed in the cooling water for having bypassed the primary heater
Merge place with the cooling water for having passed through the primary heater.
28. the method according to claim 27 for supplying fuel gas for ship, wherein stop in second compression unit
When only, the valve portion of the guiding primary heater of first triple valve is closed, and its remaining valve portion keeps being in open
Open state.
29. the method according to claim 28 for supplying fuel gas for ship, wherein establishing algorithm to allow described the
The valve portion of the guiding primary heater of one triple valve is automatic by control panel when second compression unit stops
Ground is closed.
30. a kind of method for arranging, wherein engine is placed in enging cabin, is adapted to buffer the expansion or shrinkage because of cooling water
Caused by the expansion slot of volume change be placed in above the enging cabin at 20 meters to 25 meters distances, heat heat medium with
It is placed in the primary heater of liquefied natural gas vaporization at position more higher than the expansion slot, and the first triple valve is placed in
What the cooling water for having bypassed the primary heater merged with the cooling water for having passed through the primary heater sentences
It is placed at position more lower than the expansion slot.
31. a kind of method, the method in cooling engine according to following equation by the heat distribution obtained by cooling water to
Vaporizer and fresh water generator: Ax+Bz=Ay, wherein A indicates the load of the engine, and x instruction is transferred to as the vapour
Change the maximum heat of the fluid of the heat medium in device, B indicates that the load of the fresh water generator, y are indicated in the cooling hair
The maximum heat obtained when motivation by the cooling water, and z instruction is 100% when institute in the load of the fresh water generator
The heat needed.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160128368A KR101876973B1 (en) | 2016-10-05 | 2016-10-05 | Fuel Gas Supply System and Method for Vessel |
| KR10-2016-0128367 | 2016-10-05 | ||
| KR1020160128367A KR101876972B1 (en) | 2016-10-05 | 2016-10-05 | Fuel Gas Supply System and Method for Vessel |
| KR10-2016-0128368 | 2016-10-05 | ||
| PCT/KR2017/010597 WO2018066860A1 (en) | 2016-10-05 | 2017-09-26 | System and method for supplying fuel gas for ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109863081A true CN109863081A (en) | 2019-06-07 |
| CN109863081B CN109863081B (en) | 2021-11-23 |
Family
ID=61832184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780061379.9A Active CN109863081B (en) | 2016-10-05 | 2017-09-26 | System and method for supplying fuel gas to ship |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7048589B2 (en) |
| CN (1) | CN109863081B (en) |
| SG (1) | SG11201902807UA (en) |
| WO (1) | WO2018066860A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114651148A (en) * | 2019-11-26 | 2022-06-21 | 三菱重工船用机械株式会社 | Cold energy recovery system, ship provided with cold energy recovery system, and cold energy recovery method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748439B (en) * | 2019-10-16 | 2022-01-11 | 大连船舶重工集团有限公司 | Low-pressure gas supply system capable of efficiently utilizing cold energy of LNG (liquefied natural gas) fuel |
| JP2023015869A (en) | 2021-07-20 | 2023-02-01 | 三菱造船株式会社 | Ammonia fuel supply facility, and ammonia fuel supply method |
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| JP6544929B2 (en) * | 2015-01-09 | 2019-07-17 | 大阪瓦斯株式会社 | LNG fueled ship |
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- 2017-09-26 JP JP2019517430A patent/JP7048589B2/en active Active
- 2017-09-26 SG SG11201902807UA patent/SG11201902807UA/en unknown
- 2017-09-26 WO PCT/KR2017/010597 patent/WO2018066860A1/en active Application Filing
- 2017-09-26 CN CN201780061379.9A patent/CN109863081B/en active Active
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| JPH0979036A (en) * | 1995-09-08 | 1997-03-25 | Hitachi Zosen Corp | Cooling operation method and cooling equipment in marine vessel |
| JP2004082866A (en) * | 2002-08-27 | 2004-03-18 | Mitsubishi Heavy Ind Ltd | Cooling water circulating device |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP7048589B2 (en) | 2022-04-05 |
| CN109863081B (en) | 2021-11-23 |
| WO2018066860A1 (en) | 2018-04-12 |
| JP2019531966A (en) | 2019-11-07 |
| SG11201902807UA (en) | 2019-05-30 |
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Address after: 3370 Juti Road, Juji City, Gyeongsangnam do, South Korea Patentee after: Hanhua Ocean Co.,Ltd. Address before: 3370 Juti Road, Juji City, Gyeongsangnam do, South Korea (postal code 53302) Patentee before: DAEWOO SHIPBUILDING & MARINE ENGINEERING Co.,Ltd. |