CN107914860A - Intelligent liquefied natural gas generating ship - Google Patents
Intelligent liquefied natural gas generating ship Download PDFInfo
- Publication number
- CN107914860A CN107914860A CN201711014584.8A CN201711014584A CN107914860A CN 107914860 A CN107914860 A CN 107914860A CN 201711014584 A CN201711014584 A CN 201711014584A CN 107914860 A CN107914860 A CN 107914860A
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- Prior art keywords
- lng
- bog
- ship
- storage tank
- gas
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- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 115
- 239000007789 gas Substances 0.000 claims abstract description 45
- 238000002309 gasification Methods 0.000 claims abstract description 42
- 239000000567 combustion gas Substances 0.000 claims abstract description 36
- 239000013535 sea water Substances 0.000 claims abstract description 27
- 239000007791 liquid phase Substances 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 239000000284 extract Substances 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 9
- 238000000605 extraction Methods 0.000 claims description 8
- 239000012071 phase Substances 0.000 claims description 8
- 238000010248 power generation Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 4
- 239000002737 fuel gas Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 21
- 239000000446 fuel Substances 0.000 abstract description 12
- 238000012545 processing Methods 0.000 abstract description 11
- 239000002699 waste material Substances 0.000 abstract description 11
- 239000003345 natural gas Substances 0.000 abstract description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 7
- 239000006200 vaporizer Substances 0.000 abstract description 4
- 230000007935 neutral effect Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
- B63J2/12—Heating; Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J3/00—Driving of auxiliaries
- B63J3/02—Driving of auxiliaries from propulsion power plant
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A kind of intelligence liquefied natural gas generating ship, installs LNG storage tank, LNG gasification device, jet dynamic control, combustion gas buffer unit, central control equipment, distribution transformer equipment, emergent treatment system, connection between ship and bank system, load measurement device, condenser, BOG heaters, supercharging pump group, seawater pump group, BOG storage devices, liquid phase separating device and combustible gas metering arrangement on ship body.Real-time parameter data of the invention by demand end, pass through the processing of central processing unit, the LNG amounts extracted in LNG flow containers can accurately be controlled, the seawater amount that accurate control vaporizer extracts, or the amount of natural gas of burning, realize the steady reasonable of gas supply, the electric power meet demand finally sent, total amount of fuel does not cause any waste.Can to avoid because gasification total amount it is excessive, and caused by buffer tank pressure is excessive needs the waste and environmental pollution being burnt or emptied and brought.
Description
Technical field
The present invention relates to generating ship, particularly a kind of intelligent liquefied natural gas (referred to as LNG) generating ship.
Background technology
The prior art 1 (referring to multi-functional LNG generating ships, publication number 106184691A, the new new energy difficult to understand in applicant Shanghai
Technology Co., Ltd.) it is related to a kind of multi-functional LNG generating ships, referring to Fig. 3, generating set includes gas driven generator group and double combustions
Expect generating set, gas driven generator group A is connected with the supply air line of gas driven generator group B, double fuel engine unit A and double fuel
The supply air line connection of generating set B；Panel and gas driven generator group A, gas driven generator group B, double fuel engine unit A,
Double fuel engine B of Unit connects；Supplying power for outside device, variable-frequency variable-voltage device A, variable-frequency variable-voltage equipment B, variable-frequency variable-voltage equipment C, change
Frequency potential device D is connected with panel respectively；Cable reel is connected with supplying power for outside device.During supplying power for outside, pass through the LNG that burns
Generate electricity, substantially reduce the discharge of nitrogen oxides, oxysulfide, effectively mitigate environmental pollution caused by coastal/inland navigation craft
Problem；Combustion power generation process is stablized, and ensures lasting, stable, the sufficient supply of electricity；LNG cold energy plays air adjustment in the process
Effect, effectively improve cabin working environment.
The prior art 2 (LNG new energy dislocation generation ships, application number：CN201620432813.2, applicant：Liu Fuqiang)
It is related to water project ship, is specially a kind of LNG new energy dislocation generation ship.Referring to Fig. 4, liquefied natural gas is set to start in hull
Machine, liquified natural gas tank connect the gas inlet of liquefied natural gas engine by gas stabilized-pressure valve, and liquefied natural gas starts
Heat exchange condenser is set on the pipeline between machine and liquified natural gas tank, and the power output end of liquefied natural gas engine passes through
Clutch connects generator set device, the exterior sensing electric current for setting power induction circuit closed circuit of generator set device
Coil, sensing current coil form closed circuit with heating resistor, and heating resistor is arranged on liquefied natural gas engine and liquefaction
On pipeline between natural gas tank, generator set device is connected by power cable output interface with workboat electric power input mouth.
Existing liquefied natural gas generating ship, using traditional combination, or is combined with liquified natural gas tank, Gas Pipe
Road, heat exchange condenser, gas driven generator group, distribution transformer equipment, or central control unit is configured to be uniformly controlled ship
Power supply unit, panel, generating set, propulsion unit and propeller etc..Though it can realize the function of the outer defeated grade of power generation,
But it can not realize the accurate control of LNG gasification amount, generated energy, external trnamission capacity.It is existing when network load demand reduces
Generating ship can not be adjusted voluntarily, reduction fuel consumption and power generation total amount, more will not voluntarily reduce total amount and the extraction of gasification LNG
Gasification seawater amount.Energy consumption export and consume on exist wait manual intervention the neutral gear phase, this neutral gear phase show can cause it is more
The risk of energy waste, security risk and the environmental pollution planted.For example, it is excessive in neutral gear phase institute's electricity, needed without loading
Ask, electric energy can be caused finally to be lost in power grid in the form of heat；The unnecessary LNG to be gasified in the neutral gear phase is consumed
Substantial amounts of seawater, extracting seawater can consume the energy such as the electric power of ship itself；In natural gas unnecessary caused by the neutral gear phase, compared with
LNG volumes during liquid increase more than 600 times, in the case where that cannot be burned off, high pressure storage system load increase, to whole
Ship brings huge security risk, if be directly discharged in air, because the greenhouse gases effect of methane is 400 times of CO2, and meeting
Bring great environmental pollution.Also, the technology of existing LNG generating ships, because of necessary manual intervention, can exist because of manual control not
Precisely or maloperation, the electric power that brings, combustion gas, etc. demand is unstable, energy consumption wastes, even security incident.
The content of the invention
The present invention provides a kind of intelligent liquefied natural gas generating ship, which leads to the real-time parameter data at demand end
The processing of central processing unit is crossed, can accurately control the LNG amounts extracted in LNG flow containers, the seawater amount for accurately controlling vaporizer to extract,
Or the amount of natural gas of burning, realize the steady reasonable of gas supply, the electric power meet demand finally sent, total amount of fuel does not cause
Any waste.Can to avoid because gasification total amount it is excessive, and caused by buffer tank pressure it is excessive needs burnt or emptied and
The waste and environmental pollution brought.
The technical solution of the present invention is as follows：
A kind of intelligence liquefied natural gas generating ship, installs LNG storage tank, LNG gasification device, fuel gas generation on ship body
Unit, combustion gas buffer unit, central control equipment, distribution transformer equipment, emergent treatment system, connection between ship and bank system, loading meter
Measure device, condenser, BOG heaters, supercharging pump group, seawater pump group, BOG storage devices, liquid phase separating device and gas metering
Device, its feature are：
The load measurement device, which is provided with, possesses collection flow, pressure, temperature, the sensor of component, these sensings
Device is connected with the central control equipment, and the LNG storage tank is provided with the biography for possessing monitoring temperature, liquid level, density, pressure
Sensor and immersed pump long-range control device for valve, these sensors and immersed pump long-range control device for valve by cable with it is described
Central control equipment connection, the gas metering dress is installed between the jet dynamic control and combustion gas buffer unit
Put, LNG flows through the load measurement device by filling arm from cargo ship and is filled into LNG storage tank, and the LNG storage tank is led to
Pipeline is crossed through the supercharging pump group with the LNG gasification device to be connected, the seawater pump group by pipeline with it is described
LNG gasification device is connected；The LNG gasification device is connected with the liquid phase separating device, which passes through
Air flue is connected with the combustion gas buffer unit, the combustion gas buffer unit by air flue through the combustible gas metering arrangement with it is described
Jet dynamic control be connected, the output terminal of the jet dynamic control is by cable through the distribution transformer equipment and user terminal
It is connected, the boil-off gas BOG produced in the LNG storage tank is by air flue through the BOG heaters and BOG storage devices and institute
The combustion gas buffer unit stated communicates；The boil-off gas BOG produced in the LNG storage tank through the condenser, supercharging pump group into
Enter the LNG gasification device, the LNG storage tank, BOG heaters, combustion gas buffer unit are met an urgent need by valve and described
Processing system is connected, the central control equipment and the LNG storage tank, LNG gasification device, jet dynamic control, combustion
Gas buffer unit, distribution transformer equipment, emergent treatment system, connection between ship and bank system, load measurement device, condenser, BOG heating
Device, supercharging pump group, seawater pump group, BOG storage devices, liquid phase separating device are connected with combustible gas metering arrangement by signal cable,
Information is collected during work in due course, is controlled in due course after analysis and properly.
When user terminal has electricity needs, it is defeated which by signal will pass to connection between ship and bank system by signal cable
Enter central control equipment, which is converted to electricity needs the control signal of each system of generating ship, opens first
Pump group in dynamic LNG storage tank extracts LNG, enters gasification installation by being pressurized pump group, while seawater pump group is in central control equipment
Signal under, the extracting seawater input gasification installation, will pass through liquid phase separating device separate section Low Temperature Liquid after LNG gasification
State LNG, gaseous parts enter combustion gas buffer unit, and at this time, the boil-off gas BOG produced in LNG storage tank, is passing through BOG heaters
After BOG storage devices, combustion gas buffer unit is likewise entered, combustion is installed between the generating set and combustion gas buffer unit
Gas metering device, the combustible gas metering arrangement and generating set and distribution transformer equipment are by information backs such as electricity and tolerance in
Control device is entreated, central control equipment will dock received electricity needs and power generation total amount is analysed and compared, according to difference certainly
It is dynamic to calculate substantial equilibrium, and send instruction control pump group and related valve, control LNG extractions amount, seawater extraction amount, into machine combustion gas
Amount, realizes the substantial equilibrium of barge itself, and in case of emergency, for example system jam, gasification total amount excessive pressure are exceeded
When, central control equipment, which will be sent, to be instructed unnecessary fuel gas transmission to emergent treatment system, is burnt or is emptied.
During the intelligent liquefied natural gas generating ship operation of the present invention, the central control equipment on barge body passes through
Connection between ship and bank system obtains the electricity needs of from the bank (or on ship and platform), by the central processing of central control equipment
Device is calculated, and is converted into the specific instruction and parameter of LNG processing system intelligence control systems, passes through each sensing on ship
Device obtains liquid level, temperature, density, flow, the pressure and other parameters of LNG fuel, and calculates the gas quantity needed for demand electricity, sends out
Go out the equipment such as the valve that instruction is transferred to by data cable in LNG connection systems, quantitatively control the gasification storage of LNG gasification device
LNG amounts in LNG storage tank.The natural gas produced that gasifies enters jet dynamic control, combustion gas hair by combustion gas buffer unit
The electric power that motor group produces enters distribution transformer equipment, by the output of connection between ship and bank system ashore, finally meets electricity needs
User's (or ship and platform).
The technique effect of the present invention is as follows：
Compared with prior art, the present invention on the critical process circuit of liquefied natural gas gasifying electricity generation system, it is mounted with
Monitoring probe and control element, coordinate central control equipment, can monitor liquid level, temperature, flow, the pressure of liquefied natural gas in real time
Power, density, component, monitor temperature, flow, pressure and other parameters in gasification.
The present invention, by the processing of central processing unit, is accurately controlled in LNG flow containers by the real-time parameter data at demand end
The LNG amounts of extraction, the accurate seawater amount for controlling vaporizer to extract, or the amount of natural gas of burning, realize the steady conjunction of gas supply
Reason, the electric power meet demand finally sent, total amount of fuel do not cause any waste.Can to avoid because gasification total amount it is excessive, and
Caused by buffer tank pressure is excessive needs the waste and environmental pollution being burnt or emptied and brought.
The mode of traditional simple tandem compound of plurality of devices has been carried out the optimization of depth by the present invention, increases multiple sensor
Device and control unit, form intellectualizing system, while power supply demand is met, realize the optimal supply of fuel, that is, save
About cost, also improves the safety and stability of overall operation.
The present invention possesses the ability of rapid starting/stopping using LNG Gas Generator Sets, with reference to automation control system so that whole ship has
Standby quickly from powering at full capacity, safety and steady switches to the function of stopping power supply, and is more suitable for peak load regulation network or as distribution
The core of the formula energy is independently-powered.Under the control of central control equipment, the actual demand of power grid can be in lowest energy consumption, highest
In the case of economy, quickly it is met.The present invention can realize extracting seawater, gasification LNG, consumption fuel, output power
Intelligent control.Generating ship is eliminated because loading demand changes, and the operation such as itself LNG gasification amount need to be adjusted, is waited manually dry
The pre- time, so as to eliminate unbalanced potential total energy consumption, energy waste, combustion gas high-voltage safety hidden danger, combustion gas emptying environmental protection
Risk, manual operation risk etc..Also, directly reduce the input of cost of labor, the mixed economy of significant increase power generation barge
Benefit.
Brief description of the drawings
Fig. 1 is the floor map of intelligent liquefied natural gas generating ship of the invention
Fig. 2 is the structure and pipeline connection relationship diagram of intelligent liquefied natural gas generating ship of the invention
Fig. 3 is the floor map of the multi-functional LNG generating ships of the prior art 1
Fig. 4 is the floor map of the multi-functional LNG generating ships of the prior art 2
Embodiment
With reference to embodiment and attached drawing, the invention will be further described, but the protection model of the present invention should not be limited with this
Enclose.
Please refer to Fig.1 and Fig. 2, Fig. 1 be liquefied natural gas generating ship of the invention intelligent floor map, Fig. 2 is this hair
The structure and pipeline connection relationship diagram of wise energy liquefied natural gas generating ship, as seen from the figure, present invention intelligence liquefaction is natural
Gas generating ship, on ship body 1 install LNG storage tank 2, LNG gasification device 3, jet dynamic control 4, combustion gas buffer unit 5,
Central control equipment 6, distribution transformer equipment 7, emergent treatment system 8, connection between ship and bank system 9, load measurement device 10, condenser
11st, BOG heaters 12, supercharging pump group 13, seawater pump group 14, BOG storage devices 15, liquid phase separating device 16 and gas metering dress
Put 17；
The load measurement device 10, which is provided with, possesses collection flow, pressure, temperature, the sensor of component, these biographies
Sensor is connected with the central control equipment 6, and the LNG storage tank 2, which is provided with, possesses monitoring temperature, liquid level, density, pressure
Sensor and immersed pump long-range control device for valve, these sensors and immersed pump long-range control device for valve by cable with
The central control equipment 6 connects, and the combustion gas is installed between the jet dynamic control 4 and combustion gas buffer unit 5
Metering device 17, LNG flows through the load measurement device 10 by filling arm from cargo ship and is filled into LNG storage tank 2, described
LNG storage tank 2 be connected by pipeline through the supercharging pump group 13 with the LNG gasification device 3, the seawater pump group 14
It is connected by pipeline with the LNG gasification device 3；The LNG gasification device 3 and 16 phase of liquid phase separating device
Even, which is connected by air flue with the combustion gas buffer unit 5, which passes through air flue
It is connected through the combustible gas metering arrangement 17 with the jet dynamic control 4, the output terminal of the jet dynamic control 4 passes through electricity
Cable is connected through the distribution transformer equipment 7 with user terminal, and the boil-off gas BOG produced in the LNG storage tank 2 is passed through by air flue
The BOG heaters 12 and BOG storage devices 15 is communicated with the combustion gas buffer unit 5；Produced in the LNG storage tank 2
Raw boil-off gas BOG enters the LNG gasification device 3, the LNG storage tank through the condenser 11, supercharging pump group 13
2nd, BOG heaters 12, combustion gas buffer unit 5 are connected by valve with the emergent treatment system 8, the center control
Equipment 6 and the LNG storage tank 2, LNG gasification device 3, jet dynamic control 4, combustion gas buffer unit 5, distribution transformer equipment 7,
Emergent treatment system 8, connection between ship and bank system 9, load measurement device 10, condenser 11, BOG heaters 12, supercharging pump group 13, sea
Water pump group 14, BOG storage devices 15, liquid phase separating device 16 are connected with combustible gas metering arrangement 17 by signal cable, during work
Information is collected in due course, is controlled in due course after analysis and properly.
When user terminal has electricity needs, which will pass to connection between ship and bank system by signal cable by signal
Electricity needs is converted to the control of each system of generating ship by the 9 inputs central control equipment 6, the central control equipment 6
Signal, the pump group started first in LNG storage tank 2 extract LNG, enter gasification installation 3, while seawater pump group by being pressurized pump group 13
14 under the control of central control equipment 6, the extracting seawater input gasification installation 3, will pass through liquid phase separation after LNG gasification
16 separate section low temperature liquid LNG of device, gaseous parts enter combustion gas buffer unit 5, at this time, the evaporation produced in LNG storage tank 2
Gas BOG, after by BOG heaters 12 and BOG storage devices 15, likewise enters combustion gas buffer unit 5, generating set 4 and combustion
Combustible gas metering arrangement 17, combustible gas metering arrangement 17 and generating set 4 and distribution transformer equipment 7 are installed between gas buffer unit 5
By the information backs such as electricity and tolerance to central control equipment 6, the central control equipment 6 will dock received electricity needs
Analyse and compare with power generation total amount, substantial equilibrium calculated according to difference automatically, and send instruction control pump group and related valve,
Control LNG extractions amounts, seawater extraction amount, into machine gas quantity, realize the substantial equilibrium of barge itself, in case of emergency, such as
System jam, when gasification total amount excessive pressure is exceeded, central control equipment 6 will send instruction and arrive unnecessary fuel gas transmission
Emergent treatment system 8, is burnt or is emptied.
Experiment shows, the real-time parameter data at demand end are passed through the processing of central processing unit by generating ship of the present invention, can essence
The LNG amounts really extracted in control LNG flow containers, the accurate seawater amount for controlling vaporizer to extract, or the amount of natural gas of burning, realize combustion
Gas is supplied steady reasonable, and the electric power meet demand finally sent, total amount of fuel does not cause any waste.Can be to avoid because of gas
It is excessive to change total amount, and caused by buffer tank pressure is excessive needs the waste and environmental pollution being burnt or emptied and brought.
Claims (2)
1. a kind of intelligence liquefied natural gas generating ship, installed on ship body (1) LNG storage tank (2), LNG gasification device (3),
Jet dynamic control (4), combustion gas buffer unit (5), central control equipment (6), distribution transformer equipment (7), emergent treatment system
(8), connection between ship and bank system (9), load measurement device (10), condenser (11), BOG heaters (12), supercharging pump group (13), sea
Water pump group (14), BOG storage devices (15), liquid phase separating device (16) and combustible gas metering arrangement (17), it is characterised in that：
The load measurement device (10), which is provided with, possesses collection flow, pressure, temperature, the sensor of component, these sensings
Device is connected with the central control equipment (6), and the LNG storage tank (2), which is provided with, possesses monitoring temperature, liquid level, density, pressure
The sensor and immersed pump long-range control device for valve of power, these sensors and immersed pump long-range control device for valve pass through cable
It is connected with the central control equipment (6), institute is installed between the jet dynamic control (4) and combustion gas buffer unit (5)
The combustible gas metering arrangement (17) stated, LNG flow through the load measurement device (10) by filling arm from cargo ship and are filled into LNG
In storage tank (2), the LNG storage tank (2) is by pipeline through the supercharging pump group (13) and the LNG gasification device (3)
It is connected, the seawater pump group (14) is connected by pipeline with the LNG gasification device (3)；The LNG gasification device
(3) it is connected with the liquid phase separating device (16), which is buffered with the combustion gas by air flue and filled
Put (5) to be connected, the combustion gas buffer unit (5) is by air flue through the combustible gas metering arrangement (17) and the gas electricity generator
Group (4) is connected, and the output terminal of the jet dynamic control (4) is by cable through the distribution transformer equipment (7) and user terminal phase
Even, the boil-off gas BOG produced in the LNG storage tank (2) is by air flue through the BOG heaters (12) and BOG storage dresses
(15) are put to communicate with the combustion gas buffer unit (5)；The boil-off gas BOG produced in the LNG storage tank (2) is through described cold
Condenser (11), supercharging pump group (13) enter the LNG gasification device (3), the LNG storage tank (2), BOG heaters (12),
Combustion gas buffer unit (5) is connected by valve with the emergent treatment system (8), the central control equipment (6) with
The LNG storage tank (2), LNG gasification device (3), jet dynamic control (4), combustion gas buffer unit (5), distribution transformer equipment
(7), emergent treatment system (8), connection between ship and bank system (9), load measurement device (10), condenser (11), BOG heaters
(12), pump group (13), seawater pump group (14), BOG storage devices (15), liquid phase separating device (16) and combustible gas metering arrangement are pressurized
(17) it is connected by signal cable, when work collects information in due course, is controlled in due course after analysis and properly.
2. intelligence liquefied natural gas generating ship according to claim 1, it is characterised in that when user terminal has electricity needs,
Signal will be passed to connection between ship and bank system (9) by signal cable and input central control equipment (6), the center by the electricity needs
Electricity needs is converted to the control signal of each system of generating ship by control device (6), starts the pump in LNG storage tank (2) first
Group extracts LNG, enters gasification installation (3) by being pressurized pump group (13), while seawater pump group (14) is in central control equipment (6)
Under control, extracting seawater inputs the gasification installation (3), will pass through liquid phase separating device (16) separate section after LNG gasification
Low temperature liquid LNG, gaseous parts enter combustion gas buffer unit (5), at this time, the boil-off gas BOG produced in LNG storage tank (2), logical
Cross BOG heaters (12) and BOG storage devices (15) and enter the combustion gas buffer unit (5) afterwards, in generating set (4) and combustion
Combustible gas metering arrangement (17), combustible gas metering arrangement (17) and generating set (4) are installed between gas buffer unit (5) and distribution becomes
The information backs such as electricity and tolerance to central control equipment (6), the central control equipment will be docked received electricity by electric equipment (7)
Power demand and power generation total amount are analysed and compared, and substantial equilibrium is calculated automatically according to difference, and send instruction control pump group and phase
Closing valve, control LNG extractions amount, seawater extraction amount, into machine gas quantity realize the substantial equilibrium of barge itself, in emergency
Under, such as system jam, when gasification total amount excessive pressure is exceeded, central control equipment (6) will send instruction will be unnecessary
Fuel gas transmission is burnt or is emptied to the emergent treatment system (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711014584.8A CN107914860B (en) | 2017-10-26 | 2017-10-26 | Intelligent liquefied natural gas power generation ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN107914860B (en) | 2024-03-15 |
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