CN107366572A - A kind of LNG power supply boats - Google Patents
A kind of LNG power supply boats Download PDFInfo
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- CN107366572A CN107366572A CN201710741851.5A CN201710741851A CN107366572A CN 107366572 A CN107366572 A CN 107366572A CN 201710741851 A CN201710741851 A CN 201710741851A CN 107366572 A CN107366572 A CN 107366572A
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- lng
- storage tank
- power supply
- lng storage
- pipeline
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- 230000005611 electricity Effects 0.000 claims abstract description 56
- 238000009834 vaporization Methods 0.000 claims abstract description 50
- 230000008016 vaporization Effects 0.000 claims abstract description 50
- 239000000446 fuel Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 239000007789 gas Substances 0.000 claims description 36
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 33
- 238000010438 heat treatment Methods 0.000 claims description 32
- 239000006200 vaporizer Substances 0.000 claims description 24
- 238000010304 firing Methods 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 12
- 238000011049 filling Methods 0.000 claims description 7
- 239000002737 fuel gas Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 6
- 239000007791 liquid phase Substances 0.000 claims description 6
- 239000000567 combustion gas Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 100
- 239000003345 natural gas Substances 0.000 description 50
- 238000010248 power generation Methods 0.000 description 6
- 239000010742 number 1 fuel oil Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
- F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
-
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
- F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
- F02B2043/103—Natural gas, e.g. methane or LNG used as a fuel
-
- 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
The invention discloses a kind of LNG power supply boats, power supply boat is provided with LNG fuel feed systems and gas electricity generator and distribution system, the gas electricity generator is connected with LNG fuel feed systems, the LNG fuel feed systems provide fuel for gas electricity generator, and the gas electricity generator supplies the electric energy of output by electric ship by distribution system；The LNG fuel feed systems include LNG storage tank and the LNG charging systems and air supply system that are connected in LNG storage tank, and the charging system is used to fill LNG into LNG storage tank；The air supply system is connected with gas electricity generator, and the LNG that LNG storage tank comes out becomes NG after air supply system pressurization vaporization and is sent to gas electricity generator.The power supply boat can self-generating, by its caused electric energy supply by electric ship, make that anywhere the reliability of the work by electric ship can be ensure that by electricity by electric ship.
Description
Technical field
The present invention relates to ship power supply field, refers in particular to a kind of LNG power supply boats.
Background technology
Spot ship power supply technique mainly includes three parts using bank electricity power supply technique, the technology：Power on the bank
System, cable connection device and ship are by electric system.
Electric power system on the bank：Electric power system makes electric power be fed to the tie point close to ship from high voltage substation on the bank；
Cable connection device：Connect cable and equipment between current-collecting device on shore connection and ship.Cable connection device is necessary
Meet it is quick connect and the requirement of storage, without using when storage aboard ship, on the bank or on barge；
Ship is by electric system：Aboard ship it is fixedly mounted by electric system, may be including transformer and related electric on cable reel, ship
Management system etc..
Existing bank electricity power supply mode is broadly divided into that low pressure is gone on board and high pressure is gone on board two ways：
Low pressure is gone on board：Compare typically Los Angeles port, Los Angeles port medium-pressure electricity supply voltage is 34.5kV, in harbour after decompression
Side provides 6.6kV buried electronic box.For distribution voltage be low pressure 440V by electric ship, employ an outfit tension winch
Electric power system on the bank is connected with the barge of transformer and by electric ship, the transformer on barge is reduced to the voltage of 6.6kV on the bank
440V（The ship that distribution voltage is high pressure 6.6kV does not need barge connection）Afterwards in supply by electric ship.
High pressure is gone on board：Compare typically Goteborg port, it provides 10kV tie point, the access of 10kV high pressures on bank
Dropped to after by electric ship through marine transformer transformation by electric applied voltage.
Above-mentioned power supply mode be electric energy from being supplied on the bank by electric ship, i.e., needed to power by electric ship every time, then it is necessary
Harbour is found to stop, could be by electricity.If by electric ship in way is navigated by water, electric energy deficiency, then no navigation to will occur before harbour
Have a power failure.The working ship of particularly interior korneforos, sand dredger, passenger boat etc., the Ship Structure of existing interior korneforos is simple, old, without from
Generating capacity, repack self power generation ship cost height into, difficulty is big, therefore spot ship uses bank electricity power supply mode mostly, if navigation
Out of power before to harbour, then cannot electricity consumption, operation；For working ship, out of power needs to navigate by water and charged to harbour, returns again to work
Industry point, many activity durations can be wasted by coming and going in way.
The content of the invention
It is an object of the invention to：For above-mentioned problem, there is provided a kind of LNG power supply boats, the power supply boat can be certainly
Row generates electricity, and by its caused electric energy supply by electric ship, makes anywhere to be ensure that what is by electric boatman made by electricity by electric ship
Reliability.
The technical solution adopted by the present invention is as follows：
A kind of LNG power supply boats, power supply boat are provided with LNG fuel feed systems, gas electricity generator and distribution system, the combustion gas hair
Motor is connected with LNG fuel feed systems, and the LNG fuel feed systems provide fuel, the combustion gas hair for gas electricity generator
Motor supplies the electric energy of output by electric ship by distribution system；
The LNG fuel feed systems include LNG storage tank and the LNG charging systems and air supply system that are connected in LNG storage tank, institute
Charging system is stated to be used to fill LNG into LNG storage tank；The air supply system is connected with gas electricity generator, what LNG storage tank came out
LNG becomes NG (natural gas) after air supply system pressurization vaporization and is sent to gas electricity generator.
Due to said structure, LNG fuel feed systems and gas electricity generator, gas electricity generator burning are set on power supply boat
LNG is generated electricity, and the supply of the electric energy of output is used by electric ship, can ensure by electric ship from anywhere in shipping way by
Electricity, by electric flexibly convenient.And the characteristics of LNG has high combustion efficiency as clean energy resource, and environmental pollution is small, it can replace
Coal oil is as generator fuel, the problem of can solve the problem that coal oil resource anxiety.
Spot ship, mainly inland navigation craft, their small volumes, simple in construction, self power generation ability simultaneously, repack into from
The modification difficulty of generating ship is big, and financial cost is high；Even if there is the ship of self power generation ability, also mostly using coal oil as hair
Electric fuel, is polluted to environment, and is not easy to repack LNG generatings into.
But the use of above-mentioned ship is off, will also result in the wasting of resources；Therefore the LNG power supply boats of the present invention, can be solved
The problem of certainly above-mentioned ship generates electricity, avoids it from scrapping.LNG is cleaned, efficiently, cheap, therefore also solves existing self power generation
Ship pollution on the environment（Coal oil generates electricity）, while save the self power generation expense of existing self power generation ship.
Further, the air supply system includes force (forcing) pump, carburetion system, surge tank；The LNG storage tank by pipeline and
Valve is sequentially connected with force (forcing) pump, carburetion system, surge tank, gas electricity generator.
The LNG that LNG storage tank comes out, pressurizes by force (forcing) pump, after carburetion system is vaporized into NG, is sent to surge tank and combustion successively
Gas generator.
Further, the carburetion system includes LNG vaporization device and vaporizer thermal source feed system；The vaporizer thermal source
Feed system is connected on LNG vaporization device, and the LNG vaporization device is respectively connecting to force (forcing) pump and buffering by pipeline and valve
Tank.
The thermal source of the LNG vaporization device is supplied by vaporizer thermal source feed system, and the thermal source is used to heat LNG, makes LNG vapour
It is melted into NG.
Further, the vaporizer thermal source feed system includes heater, the heater by pipeline and valve with
LNG vaporization device is interconnected to form loop；The heater is connected to the cooling of gas electricity generator by pipeline and valve
Water vat；The cooling waster vat provides hot water for heater, and hot water is sent into LNG vaporization device by heater, and hot water is by LNG vaporization into NG
Flow back in heater from LNG vaporization device, then discharged from heater again afterwards.
Due to said structure, heating after the water cooling generator in gas electricity generator cooling waster vat, can be used in heating
LNG, waste water is reused, save the energy, and hot dirt is caused to environment after avoiding the cooling water heating in cooling waster vat
Dye.
Further, the vaporizer thermal source feed system is water glycol heating system, and hot water flows to from LNG vaporization device
Expansion drum is provided with the pipeline of heater；Ethylene glycol filler is provided with the expansion drum.
It is higher in view of the freezing point temperature of water（0℃）, by the cooling water in cooling waster vat and a certain proportion of ethylene glycol（Ice
Point is relatively low, -20 DEG C to -30 DEG C）After mixing, the heat exchange of LNG vaporization device is used further to, is so managed not-easy-to-freeze.Expansion drum is touched simultaneously,
Pressure regulation effect is played in the pipeline, loine pressure is mutated after avoiding LNG vaporization work, influences the pipe in water glycol heating system
Circulate on road.
Further, NG heating systems are additionally provided between the LNG vaporization device and surge tank；NG heating systems add including NG
Hot device and NG heater thermal source feed system, the NG heaters thermal source feed system are connected on NG heaters, and the NG adds
Hot device is respectively connecting to LNG vaporization device and surge tank by pipeline and valve；The NG heaters thermal source feed system includes adding
Hot equipment, the firing equipment are interconnected to form loop by pipeline and valve with NG heaters；The firing equipment
The cooling waster vat of gas electricity generator is connected to by pipeline and valve；The cooling waster vat provides hot water for firing equipment, heating
Hot water is sent into NG heaters by equipment, is flowed back to again from NG heaters in firing equipment after NG is heated, then arranged from firing equipment
Go out；The NG heaters thermal source feed system is water glycol heating system, and hot water flows to the pipe of firing equipment from NG heaters
NG heating system expansion drums are provided with road；Ethylene glycol filler is provided with the NG heating systems expansion drum.
Due to said structure, NG heating systems are set between LNG vaporization device and surge tank, are in order to avoid LNG vaporization device
Vapourizing temperature is inadequate, and the NG temperature and pressures after vaporization do not reach requirement, therefore logical NG heating systems are to the NG after vaporization
Heating pressurization again is carried out, ensures the stability and reliability of pipe-line system work.
Further, the LNG liquid phases that the LNG charging systems include connecting with LNG storage tank fill interface and fill return-air
Outlet.
The LNG liquid phases fill interface, and LNG storage devices are connected with LNG cargo ships or on the bank, and LNG is passed through into LNG liquid phases
Structure is filled to fill in LNG storage tank；Fill return air outlet to be used to discharge the gas in LNG storage tank, ensure the pressure in LNG storage tank
Power is stable.Generally, fill return air outlet and also take back LNG cargo ships or on the bank LNG storage devices, ensure LNG cargo ships
Or on the bank in LNG storage devices LNG storage tank pressure stabilization.
Meanwhile use LNG cargo ships to fill LNG for power supply boat, it can continual be by electric ship that can ensure power supply boat
Power supply.
Further, LNG storage tank is connected by drain pipe with force (forcing) pump, and the fluid filling pump is linked back by precooling liquid back pipe
LNG storage tank, the LNG storage tank, drain pipe, force (forcing) pump and precooling liquid back pipe form pre- cold loop.
The pre- cold loop is used for precooling pipeline and force (forcing) pump, avoid LNG from LNG storage tank out when, make pipeline and plus
Press pump is cooled and damaged immediately.During precooling, a small amount of LNG is flowed out from LNG storage tank, a small amount of LNG of outflow in pipeline from
So after vaporization, precooling pipeline；After the completion of precooling, then toward being passed through a large amount of LNG, normal work in pipeline.
Further, LNG storage tank is connected by drain pipe with force (forcing) pump, and the fluid filling pump is linked back by circulating liquid back pipe
LNG storage tank, the LNG storage tank, drain pipe, force (forcing) pump and circulation liquid back pipe form LNG storage tank circulation loop.
The LNG storage tank circulation loop is used to balance the pressure in LNG storage tank, when the LNG in LNG storage tank is vaporized
When, part LNG can be made to enter in circulating pipe system, balance LNG storage tank internal pressure, ensure LNG safety storage.
Further, BOG electricity generation systems are also associated with LNG storage tank；The BOG electricity generation systems include empty formula vaporizer,
Water bath type vaporizer, fuel gas pressure-regulating box and BOG generators；The LNG storage tank by pipeline and valve successively with empty formula vaporizer,
Water bath type vaporizer, fuel gas pressure-regulating box connect with BOG generators.
Because LNG pipe-line systems are storing and can produce LNG steams, i.e. BOG in operating process, in the prior art, in order to
Ensure the pressure stability of LNG pipe-line systems, it has to discharge BOG gases；LNG waste can be so caused, and the present invention will
BOG is used to generate electricity, and BOG is reused, avoids energy waste.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
The LNG power supply boats of the present invention can be provided electric energy by electric ship, make to be charged during navigation by electric ship, it is not necessary to return to
Harbour；Charging is flexibly convenient.Pre- cold loop and LNG storage tank circulation loop in LNG fuel feed systems, ensure that LNG pipelines
The security reliability of system.BOG electricity generation systems, the BOG gases in LNG pipe-line systems is utilized herein, avoid energy waste.
Brief description of the drawings
Fig. 1 is the system construction drawing of the present invention；
Fig. 2 is the structure chart of the embodiment of the present invention 2.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1
A kind of LNG power supply boats, power supply boat deck are provided with LNG fuel feed systems, and gas electricity generator 19 is set in cabin, described
Gas electricity generator 19 is connected with LNG fuel feed systems, and the LNG fuel feed systems are that gas electricity generator 19 provides fuel,
The gas electricity generator 19 is by the electric energy of output by the complicated treatment and supplied such as grid-connected, transformation of distribution system by electric ship；Institute
Stating LNG fuel feed systems includes LNG storage tank 3 and the LNG charging systems and air supply system that are connected in LNG storage tank 3, described to fill
Dress system is used to fill LNG into LNG storage tank 3；The air supply system is connected with gas electricity generator 19, what LNG storage tank 3 came out
LNG becomes NG after air supply system pressurization vaporization and is sent to gas electricity generator 19.The air supply system includes force (forcing) pump 9, vaporization
System, surge tank 16；The LNG storage tank 3 passes through pipeline and valve and force (forcing) pump 9, carburetion system, surge tank 16, fuel gas generation
Machine 19 is sequentially connected.
The carburetion system includes LNG vaporization device 11 and vaporizer thermal source feed system；The vaporizer thermal source supply system
System is connected on LNG vaporization device 11, and the LNG vaporization device 11 is respectively connecting to force (forcing) pump 9 and surge tank by pipeline and valve
16。
The vaporizer thermal source feed system includes heater 14, and the heater 14 passes through pipeline and valve and LNG vapour
Change device 11 and be interconnected to form loop；The heater 14 is connected to the cooling of gas electricity generator 19 by pipeline and valve
Water vat；The cooling waster vat is that heater 14 provides hot water, and hot water is sent into LNG vaporization device 11 by heater 14, and hot water is by LNG vapour
Flow back in heater 14 from LNG vaporization device 11 after chemical conversion NG, then discharged from heater 14 again.
The vaporizer thermal source feed system is water glycol heating system, and hot water flows to heater from LNG vaporization device 11
Expansion drum 12 is provided with 14 pipeline；Ethylene glycol filler 13 is provided with the expansion drum 12.
The LNG liquid phases that the LNG charging systems include connecting with LNG storage tank 3 fill interface 1 and fill return air outlet 2.This
LNG liquid phases fill interface 1 and are connected with filling return air outlet 2LNG cargo ships LNG storage tank 3 in embodiment.
LNG storage tank 3 is connected by drain pipe with force (forcing) pump 9, and the fluid filling pump is linked back LNG storage tank by precooling liquid back pipe 8
3, the LNG storage tank 3, drain pipe, force (forcing) pump 9 and precooling liquid back pipe 8 form pre- cold loop.
LNG storage tank 3 is connected by drain pipe with force (forcing) pump 9, and the fluid filling pump is linked back LNG storage tank by circulating liquid back pipe 7
3, the LNG storage tank 3, drain pipe, force (forcing) pump 9 and circulation liquid back pipe 7 form LNG storage tank circulation loop.
BOG electricity generation systems are also associated with LNG storage tank 3；The BOG electricity generation systems include empty formula vaporizer 4, water-bath type vapour
Change device 5, fuel gas pressure-regulating box 6 and BOG generators 18；The LNG storage tank 3 by pipeline and valve successively with empty formula vaporizer 4, water
Bath vaporizer 5, fuel gas pressure-regulating box 6 connect with BOG generators 18.
In the present embodiment, surge tank 16 connects 6 gas electricity generators 19 by pipeline, LNG is provided combustion for 6 generators
Material.The power of every generating is 1500kW.4000kW to 8000kW power is provided when 6 generators is outwards powered；
In the present embodiment, BOG generators 18 use one, and BOG power is 150KW, and the electric energy that BOG generators 18 provide is used to power
Ship is used by oneself, such as the life power supply of power supply boat.
Embodiment 2
The present embodiment is substantially the same with embodiment 1, and it is different to being in being connected with two sets of independent confessions in the LNG storage tank 3
Gas system；Often cover air supply system and be individually connected to gas engine.As shown in Fig. 2 it is respectively arranged with left ice chest and right ice chest
Independent pre- cold loop and LNG storage tank circulation loop, and pre- cold loop and LNG storage tank circulation loop are connected with LNG storage tank 3；It is left
Force (forcing) pump 9 in ice chest and right ice chest connects an independent carburetion system respectively again；Two carburetion systems are respectively connecting to fire
Gas generator 19.
Two sets of independent air supply systems are set, two air supply system switch operatings can be made, be easy to the maintenance of air supply system
And maintenance, while ensure that the stability of LNG fuel feed systems.
Embodiment 3
The present embodiment is substantially the same with embodiment 1, and its difference is：As shown in figure 1, LNG storage tank 3 is connected with 2 pressurizations
Pump 9, and each force (forcing) pump 9 with LNG storage tank 3 formed with more cold loop and LNG storage tank circulation loop；After the parallel connection of 2 force (forcing) pump 9
It is connected to a carburetion system；The carburetion system is vectorial with gas electricity generator 19.
Two sets of force (forcing) pumps 9 are set, the switch operating of force (forcing) pump 9, easy access and maintenance can be made, ensure that LNG fuel supplies
Stability to system.
Embodiment 4
The present embodiment is substantially the same with embodiment 1,2,3, and its difference is：Between the LNG vaporization device 11 and surge tank 16
NG heating systems are additionally provided with, as shown in Figure 1；NG heating systems include NG heaters 10 and NG heater thermal source feed systems,
The NG heaters thermal source feed system is connected on NG heaters 10, and the NG heaters 10 are connected respectively by pipeline and valve
It is connected to LNG vaporization device 11 and surge tank 16；The NG heaters thermal source feed system includes firing equipment 17, the firing equipment
17 are interconnected to form loop by pipeline and valve with NG heaters 10；The firing equipment 17 passes through pipeline and valve
It is connected to the cooling waster vat of gas electricity generator 19；The cooling waster vat is that firing equipment 17 provides hot water, and firing equipment 17 is by warm
Water is sent into NG heaters 10, is flowed back to again from NG heaters 10 in firing equipment 17 after NG is heated, then arranged from firing equipment 17
Go out；The NG heaters thermal source feed system is water glycol heating system, and hot water flows to firing equipment 17 from NG heaters 10
Pipeline on be provided with NG heating systems expansion drum 15；Ethylene glycol filler is provided with the NG heating systems expansion drum 15.
NG heating systems are set between LNG vaporization device 11 and surge tank 16, are in order to avoid the vapourizing temperature of LNG vaporization device 11
Not enough, the NG temperature and pressures after vaporization do not reach requirement, therefore logical NG heating systems are carried out again to the NG after vaporization
Heating pressurization, ensure the stability and reliability of pipe-line system work.
Press detection sensor and temperature detection sensor are installed at the vaporization outlet of LNG vaporization device 11, after vaporization
NG pressure and temperatures meet the requirements, then be routed directly to surge tank 16 and gas electricity generator 19, if vaporization after NG pressure and temperature
Undesirable, then control valve break-make is spent, after NG is sent into the pressurization of NG heating system heats, then is sent to surge tank 16 and combustion gas
Generator 19.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of LNG power supply boats, it is characterised in that power supply boat is provided with LNG fuel feed systems, gas electricity generator（19）With with
Electric system, the gas electricity generator（19）It is connected with LNG fuel feed systems, the LNG fuel feed systems are fuel gas generation
Machine（19）Fuel, the gas electricity generator are provided（19）The electric energy of output is supplied by electric ship by distribution system；The LNG combustions
Material feed system includes LNG storage tank（3）Be connected to LNG storage tank（3）On LNG charging systems and air supply system, it is described to fill
System is used to fill LNG into LNG storage tank（3）；The air supply system and gas electricity generator（19）It is connected, LNG storage tank（3）Out
LNG become NG after air supply system pressurization vaporization and be sent to gas electricity generator（19）.
2. LNG power supply boats according to claim 1, it is characterised in that：The air supply system includes force (forcing) pump（9）, vaporization
System, surge tank（16）；The LNG storage tank（3）Pass through pipeline and valve and force (forcing) pump（9）, carburetion system, surge tank（16）、
Gas electricity generator（19）It is sequentially connected.
3. LNG power supply boats according to claim 2, it is characterised in that：The carburetion system includes LNG vaporization device（11）With
Vaporizer thermal source feed system；The vaporizer thermal source feed system is connected to LNG vaporization device（11）On, the LNG vaporization device
（11）Force (forcing) pump is respectively connecting to by pipeline and valve（9）And surge tank（16）.
4. LNG power supply boats according to claim 3, it is characterised in that：The vaporizer thermal source feed system includes heating
Device（14）, the heater（14）Pass through pipeline and valve and LNG vaporization device（11）It is interconnected to form loop；It is described to add
Hot device（14）Gas electricity generator is connected to by pipeline and valve（19）Cooling waster vat；The cooling waster vat is heater（14）
Hot water, heater are provided（14）Hot water is sent into LNG vaporization device（11）, hot water by LNG vaporization into after NG again from LNG vaporization device
（11）Flow back to heater（14）In, then from heater（14）Middle discharge.
5. LNG power supply boats according to claim 4, it is characterised in that：The vaporizer thermal source feed system is water second two
Alcohol heating system, hot water is from LNG vaporization device（11）Flow to heater（14）Pipeline on be provided with expansion drum（12）；The expansion
Tank（12）On be provided with ethylene glycol filler（13）.
6. LNG power supply boats according to claim 5, it is characterised in that：The LNG vaporization device（11）With surge tank（16）Between
It is additionally provided with NG heating systems；NG heating systems include NG heaters（10）With NG heater thermal source feed systems, the NG adds
Hot device thermal source feed system is connected to NG heaters（10）On, the NG heaters（10）It is respectively connecting to by pipeline and valve
LNG vaporization device（11）And surge tank（16）；The NG heaters thermal source feed system includes firing equipment (17), and the heating is set
Standby (17) pass through pipeline and valve and NG heaters（10）It is interconnected to form loop；The firing equipment (17) passes through pipe
Road and valve are connected to gas electricity generator（19）Cooling waster vat；The cooling waster vat is that firing equipment (17) provides hot water, is added
Hot water is sent into NG heaters by hot equipment (17)（10）, again from NG heaters after NG is heated（10）Flow back to firing equipment (17)
In, then discharged from firing equipment (17)；The NG heaters thermal source feed system is water glycol heating system, and hot water is from NG
Heater（10）Flow to and NG heating system expansion drums are provided with the pipeline of firing equipment (17)（15）；The NG heating systems are swollen
Swell（15）On be provided with ethylene glycol filler.
7. the LNG power supply boats according to one of claim 1 to 6, it is characterised in that：The LNG charging systems include and LNG
Storage tank（3）The LNG liquid phases of connection fill interface（1）With fill return air outlet（2）.
8. the LNG power supply boats according to one of claim 1 to 6, it is characterised in that：LNG storage tank（3）By drain pipe with adding
Press pump（9）It is connected, the fluid filling pump passes through precooling liquid back pipe（8）Be linked back LNG storage tank（3）, the LNG storage tank（3）, drain pipe,
Force (forcing) pump（9）With precooling liquid back pipe（8）Form pre- cold loop.
9. the LNG power supply boats according to one of claim 1 to 6, it is characterised in that：LNG storage tank（3）By drain pipe with adding
Press pump（9）It is connected, the fluid filling pump is by circulating liquid back pipe（7）Be linked back LNG storage tank（3）, the LNG storage tank（3）, drain pipe,
Force (forcing) pump（9）With circulation liquid back pipe（7）Form LNG storage tank circulation loop.
10. the LNG power supply boats according to one of claim 1 to 6, it is characterised in that：LNG storage tank（3）On be also associated with BOG
Electricity generation system；The BOG electricity generation systems include empty formula vaporizer（4）, water bath type vaporizer（5）, fuel gas pressure-regulating box（6）And BOG
Generator（18）；The LNG storage tank（3）By pipeline and valve successively with empty formula vaporizer（4）, water bath type vaporizer（5）, combustion
Gas pressure regulating box（6）With BOG generators（18）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710741851.5A CN107366572A (en) | 2017-08-25 | 2017-08-25 | A kind of LNG power supply boats |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710741851.5A CN107366572A (en) | 2017-08-25 | 2017-08-25 | A kind of LNG power supply boats |
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| CN107366572A true CN107366572A (en) | 2017-11-21 |
Family
ID=60310594
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710741851.5A Pending CN107366572A (en) | 2017-08-25 | 2017-08-25 | A kind of LNG power supply boats |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114109659A (en) * | 2021-11-26 | 2022-03-01 | 招商局重工(深圳)有限公司 | LPG fuel pipeline control method |
| CN114336621A (en) * | 2022-02-18 | 2022-04-12 | 中船动力研究院有限公司 | Gas-electric hybrid power ship energy management system and method |
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Application publication date: 20171121 |