CN207647561U - A kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle - Google Patents
A kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle Download PDFInfo
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- CN207647561U CN207647561U CN201720599367.9U CN201720599367U CN207647561U CN 207647561 U CN207647561 U CN 207647561U CN 201720599367 U CN201720599367 U CN 201720599367U CN 207647561 U CN207647561 U CN 207647561U
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- 238000010248 power generation Methods 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 claims abstract description 100
- 230000008569 process Effects 0.000 claims abstract description 96
- 239000002918 waste heat Substances 0.000 claims abstract description 82
- 239000007789 gas Substances 0.000 claims abstract description 71
- 230000004941 influx Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 140
- 238000010438 heat treatment Methods 0.000 claims description 34
- 239000013535 sea water Substances 0.000 claims description 34
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 230000008676 import Effects 0.000 claims description 20
- 238000001223 reverse osmosis Methods 0.000 claims description 19
- 239000013505 freshwater Substances 0.000 claims description 17
- 239000010865 sewage Substances 0.000 claims description 17
- 238000010612 desalination reaction Methods 0.000 claims description 16
- 238000002309 gasification Methods 0.000 claims description 16
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- 238000007654 immersion Methods 0.000 claims description 15
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- 239000003651 drinking water Substances 0.000 claims description 12
- 235000020188 drinking water Nutrition 0.000 claims description 12
- 238000000108 ultra-filtration Methods 0.000 claims description 11
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 10
- 230000009466 transformation Effects 0.000 claims description 10
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- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 82
- 239000003345 natural gas Substances 0.000 description 41
- 230000005611 electricity Effects 0.000 description 18
- 238000002485 combustion reaction Methods 0.000 description 14
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- 239000003643 water by type Substances 0.000 description 10
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- 229910052760 oxygen Inorganic materials 0.000 description 8
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- 230000008901 benefit Effects 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
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- 230000008016 vaporization Effects 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
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- 238000005086 pumping Methods 0.000 description 2
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model belongs to LNG power fields, and in particular to a kind of multi-functional LNG floating power generation devices using Combined cycle gas-steam turbine, including ship type floating body, ship type floating body is interior to be equipped with transformer room, condensate holding bay and LNG holding bays；Gasifying heater, the first center tube, gas turbine and waste heat boiler are installed on deck, the first and second heat exchange process is equipped in gasifying heater；Each LNG holding bays are connected to the first center tube by pipe influx to the input port of the first heat exchange process, the delivery outlet of the first heat exchange process, and the first center tube branches to each gas turbine, the first generator is coaxially connected on gas turbine.The utility model has the beneficial effects that：It can be used for rivers,lakes and seas bank or far-reaching sea, can be city, industrial area and be powered in the macrotype platform of deep high seas working or marine factory；LNG power generations are carried out on harbour, save grid laying, low cost；Stable, heat utilization rate is high；Environmental protection effect is good.
Description
Technical field
The utility model belongs to LNG power fields, and in particular to one kind is suitble to be arranged in rivers,lakes and seas bank and deep-sea is
The multi-functional LNG floating using Gas-steam Combined Cycle that city, industrial area and marine large structure etc. are powered is sent out
Electric installation.
Background technology
Currently, energy low-carbon high-efficiency becomes the first choice for pushing world economy social sustainable development, and natural gas is as a kind of
Important clean energy resource, high-quality and efficient and environment friendly and pollution-free advantage are increasingly favored by user.With technology into
Step, the costs such as exploitation, transport, storage constantly decline, therefore its application range is constantly extending.In coal, oil, natural gas three
In the macrofossil energy, the hydrogeneous ratio of natural gas is minimum, and utilization efficiency of heat energy is high, calorific value highest under identical quality requirements, carbon emission
Amount is only the half of coal.
The U.S., Japan, South Korea and Some European developed country are using natural gas as one of main energy sources of power generation.Due to
Natural gas power plant is more easier than Coal fired power station construction, cost is lower and factors, the U.S. such as disposal of pollutants is less are natural
Gas power generation proportion is significantly increased, and promotes 23.9% by 2010 by 11% or so of nineteen ninety, forms substitute gas coal
The situation of charcoal, coal generate electricity ratio by 2000 52% drop to 2013 39%.Japanese natural gas power amount accounts for total hair
The ratio of electricity by 1980 15% rise to 2013 43%.By 2014, Japanese LNG capacities of installed generator accounted for always
65% or more of capacity of installed generator.Unlatching with Britain's Competitive Electricity Market reform and Gas-steam Combined Cycle hair
Power technology reaches its maturity, and natural gas power rapidly develops, and natural gas power installed capacity in 2014 is 3378.4 ten thousand kW, accounts for complete
The 39.75% of state's total installation of generating capacity.
In China, for current coal fired power generation accounting up to 60% or more, atmosphere pollution has been the Tough questions that country faces, companion
With State Council《Prevention and control of air pollution action plan》Publication, coal electricity construction field using " above pressing greatly small " policy.More than
For the ultra supercritical unit for the current highest technology that overseas high bridge third power plant uses, inevitably due to coal electricity
Warm end losses reason, unit net efficiency are up to 46.5%.But compared to the international top combustion gas such as current GE, Siemens
The F grade gas turbines of turbine manufacturer production are also differed using the efficiency of 60% or more integrated gas-steam combined cycle power plant mode
It is very remote.
China's natural gas power generation is still in infancy.It is extensive with infrastructure such as natural gas lines at the beginning of 21 century
It builds, natural gas power industry obtains certain progress.By the end of the year 2015, China's fuel gas generation installed capacity is about 66,370,000
KW accounts for the 4.45% of whole nation power generation total installation of generating capacity, and natural gas power amount is 165,800,000,000 kWh, accounts for national gross generation
2.95%, it is far below world average level.The factor of restricting current China's natural gas power generating industry development is in addition to endowment of resources, also
There is the reason that technical equipment falls behind.Shanghai is electrical at present, Dongfang Electric, breathes out electrically equal domestic stronger on gas turbine field basis
Enterprise cooperate one after another with international gas turbine giant, the gas-steam combined that production domesticization is released in a manner of technology transfer is followed
Ring generating set, strong has pushed the paces that China's natural gas generates electricity.The construction of land-based area Natural Gas Power Plant is limited by naturally
The laying of feed channel net, and there are wide maritime waters resource, and LNG cargo ships in the main electricity consumption economic zone of Deposits in Eastern Coastal China
It can easily shuttle in these waters, not there is also such equipment to use at present, therefore be developed using its water area resource
Floating power generation device has good foreground.
Invention content
The purpose of this utility model is that there are the construction of Natural Gas Power Plant to be limited by natural gas line net in the prior art
Laying and at present there is no using its water area resource development floating power generation device under the premise of, one kind is provided and can be used for rivers,lakes and seas
Littoral or far-reaching sea can be city, industrial area and is powered in the macrotype platform of deep high seas working or marine factory；In harbour
Upper progress LNG power generations, save grid laying, and the multi-functional LNG floating using Gas-steam Combined Cycle of low cost generates electricity
Device.
Technical solution adopted by the utility model to solve its technical problems is：It is a kind of to use Gas-steam Combined Cycle
Multi-functional LNG floating power generation devices comprising ship type floating body, if ship type floating body in be equipped with transformer room, condensate holding bay and
Dry LNG holding bay；Be equipped on the deck of ship type floating body gasifying heater, First Heat Exchanger, the first center tube, several
Gas turbine and several waste heat boilers, gas turbine and waste heat boiler are arranged correspondingly, be equipped in gasifying heater into
The first heat exchange process and the second heat exchange process of the mutual heat exchange of row, First Heat Exchanger is interior to be equipped with the third for carrying out mutual heat exchange
Heat exchange process and the 4th heat exchange process；
It is equipped with immersion pump in each LNG holding bays, immersion pump passes through pipe influx to the input of the first heat exchange process
Mouthful, the delivery outlet of the first heat exchange process is connected to the import of the first center tube, the outlet manifold of the first center tube to each combustion
In the air inlet of gas-turbine, the first generator, the power output end of each first generator are coaxially connected on each gas turbine
Equal cable connection is to transformer room；
The outlet port of each gas turbine is connected in waste heat boiler correspondingly, in each waste heat boiler
It is equipped with low-pressure steam circuit；Condensate delivery pump is equipped in condensate holding bay, the pump discharge of condensate delivery pump passes through pipeline shunt
To the water inlet end in each low-pressure steam circuit, the steam output end in low-pressure steam circuit by pipe influx to the 4th heat exchange process into
In mouthful, in the outlet to condensate holding bay of the 4th heat exchange process；Third heat exchange process and the second heat exchange process constitute cycle
Circuit is equipped with forced circulation pump in circulation loop, and circulation has heating agent.
The ship type floating body of the utility model uses dumb barge form, and with simple in structure, manufacturing cost is low, internal
Space is big, the advantages that arrangement convenient for equipment pipe.Wherein, inner space arrangement transformer room, condensate holding bay and several LNG
Holding bay；Gasifying heater, First Heat Exchanger, the first center tube, several gas turbines and several waste heats are arranged in deck
Boiler；Therefore the utility model integrated level is high, and area occupied is small, and can carry out water surface towage with the need to the code of appointed place
On in front, flexibly and easily.It can be completed in shipyard in addition, all main bodys of the utility model build debugging efforts, then towage
To appointed place, the work such as construction debugging do not influence local periphery living environment.
Several LNG holding bays can be set in ship type floating body, immersion pump is designed in each LNG holding bays.In this device
During operation, the LNG in LNG holding bays is input to by immersion pump in gasifying heater, the natural gas generated after gasification
The combustion chambers burn acting being input in each gas turbine.Coaxially connected first power generation of the inlet end of each gas turbine
The exhaust gas outlet side of machine, each gas turbine will be connected with corresponding waste heat boiler, and waste heat boiler is low using waste-gas heat
Pressure steam-return line is heated.Low-pressure steam in low-pressure steam circuit is changed by the 4th that pipeline is input in First Heat Exchanger
The heating agent of thermal flow process, low-pressure steam and third heat exchange process in the 4th heat exchange process carries out heat exchange, and heating agent is heated in gasification
Device and First Heat Exchanger carry out closed cycle between the two, so as to be used in the heat transmission to gasifying heater in low-pressure steam circuit
In the gasification and heating of LNG.Wherein, low-pressure steam, which cannot be passed directly into gasifying heater, carries out heating vaporization LNG, and low pressure is steamed
Vapour, which encounters low temperature LNG and can freeze, causes equipment that can not run, it is therefore desirable to be arranged gasifying heater and during First Heat Exchanger passes through
Between heating agent carry out the transmission of heat, efficient its advantage is that small, production is stablized, and the heat generated using waste heat boiler
By closed cycle heating agent Carbureted heat energy is provided to LNG.Become liquid water and defeated by the low-pressure steam after the 4th heat exchange process
Enter into condensate holding bay and stores.Water in condensate holding bay is pumped into each waste heat boiler by condensate delivery pump and is heated,
To form low-pressure steam circuit.Finally, the electric power that each first generator generates is by cable connection to transformer room, becoming
Electric energy after pressure may be output to outside.
Wherein, it is preferred that the first heat exchange process can be the shell side of gasifying heater, and the second heat exchange process can be gasification heating
The tube side of device；Heat utilization rate is high, is convenient for internal washing.
Preferably, third heat exchange process can be the shell side of First Heat Exchanger, the 4th heat exchange process can be First Heat Exchanger
Tube side, heat utilization rate is high.
The utility model can be used for rivers,lakes and seas bank or far-reaching extra large environmental condition, and have ship for natural gas applications
A kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle of type floating body, the electric power generated pass through cable
Power grid can be accessed to be city, industrial area and be powered in the macrotype platform of deep high seas working or marine factory.And it is existing
The construction of land-based area Natural Gas Power Plant is limited by the laying of natural gas line net, and cost is very huge.Due to directly on harbour
LNG power generations are carried out, natural gas line net laying can be saved and set, low cost.The main electricity consumption economic zone of Deposits in Eastern Coastal China has wide
Maritime waters resource, and LNG cargo ships can easily shuttle in these waters, and rest in the utility model uses combustion
The multi-functional LNG floating power generation devices side of gas-Steam Combined Cycle, and convey LNG and generate electricity to the LNG floating of the utility model
Device generates electricity, therefore has good market prospects using its water area resource development floating power generation device.
The gas-steam combined circulating generation unit that the utility model uses is efficient, stable, heat utilization rate
60% or more, and large and super-critical/ultra supercritical thermal power generation unit is between 40-50%；The used LNG energy is clear
The clean energy, discharge are all substantially water and carbon dioxide, almost nitrogenfree oxide and sulfide, and there are no dust discharges, are protected to environment
It protects of far-reaching significance；The gas-steam combined circulating generation unit form of use, start-stop is rapid, is extremely applicable to power peak regulation.
Specifically, LNG receiving platforms are additionally provided on the deck of ship type floating body, LNG receiving platforms are used to fill by hose
The LNG set on external LNG cargo ships is delivered to by pipeline shunt in each LNG holding bays.Ship type floating body can rest against code
On in front, LNG cargo ships rest against on ship type floating body side, i.e., ship type floating body makes full use of between LNG cargo ships and harbour
Wide maritime waters resource, is not take up land resources, using its water area resource development floating power generation device have it is good before
Scape.
Specifically, BOG compressors and cooler, the top gas of each LNG holding bays are additionally provided on the deck of ship type floating body
Room is connected to the input port of BOG compressors by pipeline, and the delivery outlet of BOG compressors is connected to the first center by cooler
The import of pipeline.The BOG of natural evaporation is will produce in LNG holding bays daily, and the BOG in the ship type floating body of the utility model is logical
Piping is input in BOG compressors, this BOG compressor can be entered by electrical motor driven, compressed BOG in aftercooler
Cool down, be then collected to the first center tube, the first center tube is used to BOG compressing natural gas after cooling and gasification
The natural gas generated afterwards is collected and is conveyed, and then the first center tube branches in the air inlet of each gas turbine, respectively
A gas turbine carries out work by combustion.Gas turbine has the natural gas of burning the requirement of pressure and temperature, compressed BOG to reach
It can heat up after to pressure requirements, it is therefore desirable to which cooler carries out the temperature requirement that cooling reaches burning.Wherein, the condensation of cooler
Liquid is water, this water can take fresh water or seawater progress single cycle cooling outside hull by pumping.The utility model also makes full use of
BOG carries out combustion power generation, improves energy utilization rate.
Further, several steam turbines are additionally provided on ship type floating body, be also equipped in each waste heat boiler it is high/in
Press steam-return line, the steam output end in each height/middle pressure steam circuit by pipeline by many-one or it is one-to-one in a manner of be connected to it is each
In the air intake of a steam turbine, the steam output end of steam turbine is connected to condensate holding bay by condensing plant, steam turbine
Be connected with the second generator on output shaft, the power output end of the second generator also equal cable connection to transformer room；Transformer
Transformer in room is dry-type transformer, oil-immersed transformer or gas-insulated transformer.It will can certainly become according to demand
Depressor is arranged on deck, and the electric power that the first generator and the second generator are sent out, which is transmitted through the cable in transformer room, to carry out
Transformation.The present embodiment can be according to the different setting of the requirement of power generation scale, but its basic principle is consistent.Every gas turbine into
Coaxially connected first generator is distinguished at gas end, and a waste heat boiler, more waste heat boiler productions are all connected in discarded outlet side
Raw height/middle pressure steam is input to a steam turbine, which connects second generator, and the present embodiment is applicable in model
It encloses extensively, is suitable for the transformation of different power generation scales, maximum power generation is up to 800 megawatts.The waste heat boiler of the present embodiment can
Three discard heat boilers are selected as, also generating height/middle pressure steam using the waste gas residual heat in gas turbine carries out drive vapor wheel
Machine carries out cogeneration, and the height/middle pressure steam recovery waste heat ability of the present embodiment is strong, further improves energy utilization rate.
The quantity of gas turbine and waste heat boiler is all several, and the quantity of steam turbine is several；Specifically, one
The steam turbine of waste heat boiler+one of platform gas turbine+one, as one-to-one configuration；+ two waste heat boilers of two gas turbines
+ one steam turbine, as two drag a configuration；Three steam turbines of waste heat boiler+two of gas turbine+three, as three drag
Two configurations；The present embodiment can be according to the power between different power generation scales and gas turbine, waste heat boiler and steam turbine
Other various configurations may be used in matching relationship, such as five drag three, four to drag four or three to drag first-class.
Specifically, multi-functional LNG floating power generation devices further include several oxygen-eliminating devices, and oxygen-eliminating device and waste heat boiler one are a pair of
It answers, the pump discharge of condensate delivery pump is by the way that in pipeline shunt to each oxygen-eliminating device, each oxygen-eliminating device passes through pipeline shunt to phase
The import in low-pressure steam circuit and height/middle pressure steam circuit in corresponding waste heat boiler, the steam inlet and low pressure of oxygen-eliminating device
The export pipeline of steam-return line is connected to.The utility model removes the oxygen in water by the method that steam heats water supply, avoids high temperature
Each equipment in lower oxygen corrosion device.
Preferably, the multi-functional LNG floating power generation devices under one-to-one pattern further include an oxygen-eliminating device, oxygen-eliminating device pair
One waste heat boiler should be set, and the pump discharge of condensate delivery pump is by the way that in pipeline shunt to oxygen-eliminating device, oxygen-eliminating device passes through pipeline
Branch to the import in the low-pressure steam circuit in waste heat boiler and height/middle pressure steam circuit, the steam inlet and low pressure of oxygen-eliminating device
The export pipeline of steam-return line is connected to.
Specifically, it is further connected with water supply pipe on the pipeline between the pump discharge and oxygen-eliminating device of condensate delivery pump；Waste heat boiler
Sewage draining exit is communicated with boiler blow-off surge tank by pipeline, and the gaseous phase outlet of boiler blow-off surge tank is connected to each by pipeline
Oxygen-eliminating device, the sewage draining exit of boiler blow-off surge tank are connected to the outside of multi-functional LNG floating power generation devices.In entire steam circulation
The loss of water is had in the process, and the water of loss can be continuously replenished in waste heat boiler from the external world.Portion is will produce in entire steam-return line
Divide sewage, from being discharged into waste heat boiler in boiler blow-off surge tank, some vapor flows back into oxygen-eliminating device sewage, and sewage is then from pot
It is discharged, ensure that the cleaning of water body and recycles in dirt removing surge tank.
Specifically, multi-functional LNG floating power generation devices further include seawater desalination system, and seawater desalination system includes seawater
Case, is communicated with water inlet pipe on sea water tank, and it is anti-that sea water tank by the first pipeline is sequentially communicated ultrafiltration module, ultrafiltration water producing tank, seawater
Osmosis module, first-stage reverse osmosis water tank, secondary reverse osmosis module, desalination water tank, deionization module and deionization water tank, deionization
Water tank is connected to the water inlet of water supply pipe by outlet pipe；The water outlet of first-stage reverse osmosis water tank is drunk by the second pipeline connection
It is used for outer supplying drinking water with the water outlet of water post-processing module, Drinking Water After-treatment module；First-stage reverse osmosis water tank passes through third
The daily system of pipeline connection fresh water.
The utility model produces three parts water, i.e., outer supplying drinking water, the utility model by above-mentioned seawater desalination system
The waste heat boiler moisturizing (deionized water) of the domestic fresh water and gas-steam combined circulating generation unit of floating power generation device.Come
From the seawater of sea water tank by generating clean seawater after ultrafiltration module, reach the inflow requirement of sea-water reverse osmose module and by super
Filter water producing tank is delivered to sea-water reverse osmose module, and manufactured primary freshwater storage is in first-stage reverse osmosis water tank, a part of fresh water
For the daily system of fresh water of the floating power generation device of the utility model, most of fresh water is adjusted through Drinking Water After-treatment module
PH, chlorination and addition minerals externally supply water after reaching drinking water standard, and the fresh water from first-stage reverse osmosis water tank is through secondary counter
Desalted water is made after osmosis module and is stored in desalination water tank, deionized water is made after deionization module, is stored in deionized water
In case, for waste heat boiler moisturizing.The utility model can make full use of each resource on floating power generation device, purify and desalinate into
A variety of water resources for different demands, and it is light using the electric power progress that the floating power generation device of the utility model is occurred
Change, energy conservation and environmental protection, the utility model is used not only for harbour power generation, is also adapted for water shortage when the operation of ocean and dries harsh environment
In.
Further, the first heat exchange process is the shell side of gasifying heater, and the second heat exchange process is the pipe of gasifying heater
Journey；Third heat exchange process is the shell side of First Heat Exchanger, and the 4th heat exchange process is the tube side of First Heat Exchanger；Third heat exchange process
Outlet and the import of the second heat exchange process between pipeline in be communicated with the second heat exchanger；The tube side outlet of second heat exchanger is logical
It crosses the second center tube and branches to a plurality of clients, a plurality of clients converge into the chilled water of BrLi chiller by pipeline
Refluxing opening, the chilled water outlet of BrLi chiller are connected to the import of the second center tube, the second heat exchanger by pipeline
Tube side inlet communication a plurality of clients bus dump middle part；The cooling water outlet and inlet of BrLi chiller passes through pipeline
It is connected into cooling circuit with outdoor cooling tower；The driving heat source import of BrLi chiller is connected to steam turbine by pipeline
Steam (vapor) outlet, the driving heat source of BrLi chiller is exported is connected to condensate holding bay by third heat exchanger.
The above-mentioned technological process of the utility model constitutes refrigeration system, and this system realizes the refrigeration of two ways：It utilizes
The characteristic of a large amount of cold energy is discharged when LNG gasification, and is concentrated and is vaporized as power drive lithium-bromide solution using steam thermal energy, utilizes vaporization
When to absorb the characteristic of heat and freeze.Wherein, refrigeration modes one, between third heat exchange process and the second heat exchange process
In circuit, intermediate heating agent is cooled to low temperature when LNG gasifies in gasifying heater, part low temperature heating agent enters First Heat Exchanger
It is middle that certain temperature is heated to by low-pressure steam, it enters back into the second heat exchanger and exchanges heat with chilled water (chilled water) later, after heat exchange
The heating agent circuit that enters between third heat exchange process and the second heat exchange process of heating agent in continue cycling through, chilled water is in the second heat exchange
It is supplied to each user to use after being cooled in device.Refrigeration modes two, the steam of extraction section certain pressure from steam turbine,
BrLi chiller is introduced as driving heat source, the steam condensation water come out from BrLi chiller is dropped by third heat exchanger
To certain temperature, then condensate holding bay is inputted, chilled water (chilled water), which enters after BrLi chiller is cooled, to be supplied to
Each user.Chilled water after user's use returns again to refrigeration unit and is re-cooled.It can be selected according to the demand of refrigerating capacity
One of the above or two ways refrigeration, the cold of generation can distribute to multiple users and use.The utility model can fully be conducive to two
Kind residual heat resources are freezed, energy conservation and environmental protection, and therefore, the utility model is used not only for harbour power generation, is also adapted for ocean work
When industry in sweltering heat harsh environment.
Further, open deck framed bent is also equipped on the deck of ship type floating body, open deck framed bent is for being arranged electricity
Line or cable trough are exported with exporting the electric energy after transformer room's transformation convenient for electric power.
Optionally, multiple be used for LNG floating power generation device moorings in quayside is also equipped on the deck of ship type floating body
On mooring winch, ship type floating body tightens hawser by mooring winch on its deck and hull is tightly attached on harbour, realizes it
Stablize mooring, therefore the LNG floating power generation devices mooring of the utility model is firm on harbour, stopping.
Another optional scheme is：It is also equipped with multiple connecting rods on the deck of ship type floating body, in each connecting rod
Equipped with positioning sleeve, guide pile of the positioning sleeve for being socketed on quayside.Guide pile squeezes into mud line following certain depth, ship type first
Floating body is dragged in the space between guide pile, and then hull both sides have connecting rod, connecting rod to be connected with guide pile, realizes its stabilization
Mooring.
Further, LNG holding bays are c-type tank, Type B tank or film-type cabin, and the ship type floating body of the utility model can be arranged
The LNG holding bays of different cabin types, it is applied widely.LNG holding bays can also use other forms, such as A type tanks.
Further, steam turbine and the second generator are set on the inside or deck of ship type floating body, are convenient for space utilization
And actual arrangement optimization, facilitate hull device layout.
In conclusion the operation principle of the utility model：On the LNG floating power generation devices that LNG passes through the utility model
LNG receiving platforms are transported to the LNG on LNG cargo ships in each LNG holding bays in ship type floating body by pipeline.It fills herein
During setting operation, the natural gas of supply gas turbine acting comes from two passes, and one is natural in ship type floating body
The BOG of evaporation, BOG are input to by pipeline in BOG compressors, this BOG compressor is by electrical motor driven, compressed BOG
Into cooling down in cooler, do work then into the combustion chambers burn of each gas turbine.Another channel is each
LNG in LNG holding bays is input to by immersion pump in gasifying heater, and the natural gas generated after gasification is cooled down with BOG compressions
Natural gas afterwards converges, and is then input to the combustion chambers burn acting of each gas turbine.The inlet end of each gas turbine is coaxial
The first generator is connected, the exhaust gas outlet side of each gas turbine is all connected with a waste heat boiler, and each waste heat boiler profit uses exhaust gas
Heat is that two steam-return lines are heated, and one is height/middle pressure steam circuit, and another is low-pressure steam circuit.From Duo Tai
Height/middle pressure steam circuit that waste heat boiler generates is input in a steam turbine and does work together, steam turbine coaxially connected the
Two generators, the power Transmission that final second generator generates is to transformer room.Steam after acting after condensing plant by becoming
At liquid water and it is stored in condensate holding bay.Low-pressure steam is generated from the low-pressure steam circuit of more waste heat boilers passes through pipe
Road is input in the 4th heat exchange process of First Heat Exchanger, and carries out heat exchange with the heating agent in the first heat exchange process, and heating agent exists
Third heat exchange process and the second heat exchange process carry out closed cycle circuit between the two, so that the heat transmission in low-pressure steam circuit
To the gasification and heating for being used for LNG in gasifying heater.Become liquid water by the low-pressure steam after First Heat Exchanger and inputs
To being stored in condensate holding bay.Water in condensate holding bay is pumped into height/middle pressure steam in each waste heat boiler by immersion pump and returns
Heating evaporation is carried out in road and low-pressure steam circuit.The electric power generated by the first generator and the second generator passes through cable connection
Into transformer room, the electric energy after transformation exports electric energy by open deck framed bent.Part is will produce in entire steam-return line
Sewage, from being discharged into waste heat boiler in boiler blow-off surge tank, some vapor flows back into oxygen-eliminating device sewage, and sewage is then from boiler
It is discharged, ensure that the cleaning of water body and recycles in pollution discharge buffering tank.The utility model heats water supply by oxygen-eliminating device steam
Method remove water in oxygen, avoid each equipment in oxygen corrosion device under high temperature.Gas-steam Combined Cycle is completed since then
Power generation overall process.
Another optional scheme：The quantity of gas turbine and waste heat boiler is four, on the deck of ship type floating body also
Equipped with two steam turbines, height/middle pressure steam circuit, two height/middle pressure steam circuit are also equipped in each waste heat boiler
Steam output end by pipe influx in the air intake of a steam turbine, other two height/middle pressure steam circuit goes out vapour
By pipe influx in the air intake of another steam turbine, the steam output end of two steam turbines passes through condensing plant at end
It is connected to condensate holding bay, the second generator, the electric power of each second generator are respectively connected on the output shaft of every steam turbine
Output end also equal cable connection to transformer room.Four patterns for dragging two have also can be used in the utility model, further increase LNG
Power generation scale.
A kind of beneficial effect of the multi-functional LNG floating power generation devices using Gas-steam Combined Cycle of the utility model
Fruit is：
1. the ship type floating body of the utility model uses dumb barge form, with simple in structure, manufacturing cost is low, interior
Portion space is big, the advantages that arrangement convenient for equipment pipe；
2. the utility model integrated level is high, area occupied is small, and can carry out water surface towage with the need to appointed place
On quayside, flexibly and easily；
3. all main bodys of the utility model are built debugging efforts and can be completed in shipyard, then towage to appointed place,
Its work such as debugging of constructing does not influence local periphery living environment；
4. the transmission that gasifying heater and First Heat Exchanger carry out heat by intermediate heating agent is arranged, its advantage is that volume
Small, efficient, production is stablized, and the heat generated using waste heat boiler provides Carbureted heat energy by closed cycle heating agent to LNG；
5. the utility model can be used for rivers,lakes and seas bank or far-reaching extra large environmental condition, and having for natural gas applications
A kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle of ship type floating body, the electric power generated pass through electricity
Cable can access power grid and be city, industrial area and be powered in the macrotype platform of deep high seas working or marine factory；
6. due to carrying out LNG power generations directly on harbour, natural gas line net laying can be saved and set, low cost；East China
There is wide maritime waters resource in coastal main electricity consumption economic zone, and LNG cargo ships can easily be worn in these waters
Shuttle, rests in the multi-functional LNG floating power generation devices side using Gas-steam Combined Cycle of the utility model, and conveys
LNG generates electricity to the LNG floating power generation devices of the utility model, therefore has using its water area resource development floating power generation device
There are good market prospects；
7. the gas-steam combined circulating generation unit that the utility model uses is efficient, stable, heat energy utilization
Rate is 60% or more, and large and super-critical/ultra supercritical thermal power generation unit is between 40-50%；
The LNG energy used by 8. be clean energy resource, discharge substantially all be water and carbon dioxide, almost nitrogenfree oxide and
Sulfide, it is of far-reaching significance to environmental protection there are no dust discharge；
9. the gas-steam combined circulating generation unit form used, start-stop is rapid, is extremely applicable to power peak regulation；
10. the utility model can make full use of each resource on floating power generation device, purify and desalinate into it is a variety of for
The water resource of different demands, and desalinated using the electric power that the floating power generation device of the utility model is occurred, energy-saving ring
It protects, the utility model is used not only for harbour power generation, is also adapted for when the operation of ocean in water shortage drying harsh environment；
11. the utility model can fully freeze conducive to two kinds of residual heat resources, energy conservation and environmental protection, therefore, the utility model
It is used not only for harbour power generation, is also adapted for when the operation of ocean in sweltering heat harsh environment.
Description of the drawings
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is a kind of work of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle of the utility model
Skill flow chart；
Fig. 2 is the one of a kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle of the utility model
Drag the partial process flow diagram of a pattern；
Fig. 3 is a kind of gas of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle of the utility model
Change the annexation figure of heater and First Heat Exchanger；
Fig. 4 is more than a kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle of the utility model
The partial enlarged view of heat boiler；
Fig. 5 is that a kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle of the utility model are
Moor the fitting arrangement of winch above deck；
Fig. 6 is a kind of company of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle of the utility model
The connection structure diagram of extension bar and guide pile；
Fig. 7 is a kind of sea of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle of the utility model
The process flow chart of water desalination system；
Fig. 8 is a kind of system of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle of the utility model
The process flow chart of cooling system.
Wherein:1. ship type floating body, 101. transformer rooms, 102. condensate holding bays, 103.LNG holding bays；2. gasification heating
Device, 201. first heat exchange processes, 202. second heat exchange processes；3. First Heat Exchanger, 301. third heat exchange processes, 302. the 4th change
Thermal flow process；4. the first center tube；5. gas turbine；6. waste heat boiler；7. immersion pump；8. the first generator；9. low-pressure steam
Circuit；10. condensate delivery pump；11. forced circulation pump；12.LNG receiving platforms；13.BOG compressors；14. cooler；15. steaming
Steam turbine；16. height/middle pressure steam circuit；17. condensing plant；18. the second generator；19. open deck framed bent；20. mooring twists
Vehicle；21. guide pile；22. connecting rod, 2201. positioning sleeves；23. electro-motor；24. oxygen-eliminating device；25. boiler blow-off surge tank；
26. water supply pipe；150. sea water tanks, 151. ultrafiltration modules, 152. ultrafiltration water producing tanks, 153. sea-water reverse osmose modules, 154. level-ones
Reverse osmosis water tank, 155. 2 reverse osmosis modules, 156. desalination water tanks, 157. deionization modules, 158. deionization water tanks, 159.
Drinking Water After-treatment module；161. second heat exchangers, 162. second center tubes, 163. BrLi chillers, 164. is outdoor
Cooling tower, 165. third heat exchangers.Wherein, the solid line in Fig. 1-Fig. 3 is fluid liquid pipeline, and dotted line is gaseous fluid pipeline,
Chain-dotted line is cable.
Specific implementation mode
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
Embodiment one：
A kind of multi-functional LNG floating using Gas-steam Combined Cycle of the utility model as Figure 1-Figure 8 is sent out
The embodiment one of electric installation comprising ship type floating body 1, if ship type floating body 1 in be equipped with transformer room 101, condensate holding bay 102 and
Dry LNG holding bay 103；Gasifying heater 2, First Heat Exchanger 3, the first center tube are installed on the deck of ship type floating body 1
4, several gas turbines 5 and several waste heat boilers 6, gas turbine 5 and waste heat boiler 6 are arranged correspondingly, and gasification adds
It is equipped with the first heat exchange process 201 and the second heat exchange process 202 for carrying out mutual heat exchange in hot device 2, is equipped in First Heat Exchanger 3
Carry out the third heat exchange process 301 and the 4th heat exchange process 302 of mutual heat exchange；
It is equipped with immersion pump 7 in each LNG holding bays 103, immersion pump 7 passes through pipe influx to the first heat exchange process
201 input port, the delivery outlet of the first heat exchange process 201 are connected to the import of the first center tube 4, and the first center tube 4 goes out
Mouth branches in the air inlet of each gas turbine 5, and the first generator 8, each first hair are coaxially connected on each gas turbine 5
The equal cable connection of power output end of motor 8 is to transformer room 101；
The outlet port of each gas turbine 5 is connected in waste heat boiler 6 correspondingly, each waste heat boiler 6
In be equipped with low-pressure steam circuit 9；Condensate delivery pump 10, the pump discharge of condensate delivery pump 10 are equipped in condensate holding bay 102
By pipeline shunt to the water inlet end in each low-pressure steam circuit 9, the steam output end in low-pressure steam circuit 9 passes through pipe influx to
In the import of four heat exchange processes 302, in the outlet to condensate holding bay 102 of the 4th heat exchange process 302；Third heat exchange process
301 and second heat exchange process 202 constitute circulation loop, forced circulation pump 11 is equipped in circulation loop, and circulation has heating agent.
The ship type floating body 1 of the present embodiment uses dumb barge form, and with simple in structure, manufacturing cost is low, internal
Space is big, the advantages that arrangement convenient for equipment pipe.Wherein, if inner space arrangement transformer room 101, condensate holding bay 102 and
Dry LNG holding bay 103；Gasifying heater 2, First Heat Exchanger 3, the first center tube 4, several gas turbines are arranged in deck
5 and several waste heat boilers 6；Therefore the present embodiment integrated level is high, and area occupied is small, and can carry out water surface towage extremely with the need
On the quayside of appointed place, flexibly and easily.In addition, all main bodys construction debugging efforts of the present embodiment can be complete in shipyard
At then towage to appointed place, the work such as construction debugging do not influence local periphery living environment.
Several LNG holding bays 103 can be set in ship type floating body 1, immersion pump 7 is designed in each LNG holding bays 103.
During this device is run, the LNG in LNG holding bays 103 is input to by immersion pump 7 in gasifying heater 2, after gasification
The natural gas of generation is input to the acting of the combustion chambers burn in each gas turbine 5.The inlet end of each gas turbine 5 is coaxial
The first generator 8 is connected, the exhaust gas outlet side of each gas turbine 5 will be connected with corresponding waste heat boiler 6, waste heat boiler 6
It is that low-pressure steam circuit 9 is heated using waste-gas heat.Low-pressure steam in low-pressure steam circuit 9 is input to by pipeline
The 4th heat exchange process 302 in one heat exchanger 3, the heat of low-pressure steam and third heat exchange process 301 in the 4th heat exchange process 302
Matchmaker carries out heat exchange, and heating agent carries out closed cycle between the two in gasifying heater 2 and First Heat Exchanger 3, so that low-pressure steam returns
The gasification and heating of LNG are used in heat transmission to gasifying heater 2 in road 9.Wherein, low-pressure steam cannot be passed directly into gas
Change and carry out heating vaporization LNG in heater 2, low-pressure steam, which encounters low temperature LNG and can freeze, causes equipment that can not run, it is therefore desirable to
The transmission that gasifying heater 2 and First Heat Exchanger 3 carry out heat by intermediate heating agent is set, its advantage is that it is small, it is efficient,
Production is stablized, and the heat generated using waste heat boiler 6 provides Carbureted heat energy by closed cycle heating agent to LNG.Pass through the 4th
Low-pressure steam after heat exchange process 302 becomes liquid water and is input in condensate holding bay 102 to store.In condensate holding bay 102
Water each waste heat boiler 6 be pumped by condensate delivery pump 10 heated, to form low-pressure steam circuit 9.Finally, each
The electric power that one generator 8 generates is by the way that in cable connection to transformer room 101, the electric energy after transformation may be output to outside.
Wherein, it is preferred that the first heat exchange process 201 can be the shell side of gasifying heater 2, and the second heat exchange process 202 can be
The tube side of gasifying heater 2；Heat utilization rate is high, is convenient for internal washing.
Preferably, third heat exchange process 301 can be the shell side of First Heat Exchanger 3, the 4th heat exchange process 302 can be first
The tube side of heat exchanger 3, heat utilization rate are high.
The present embodiment can be used for rivers,lakes and seas bank or far-reaching extra large environmental condition, and have ship type for natural gas applications
A kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle of floating body 1, the electric power generated pass through cable
Power grid can be accessed to be city, industrial area and be powered in the macrotype platform of deep high seas working or marine factory.And it is existing
The construction of land-based area Natural Gas Power Plant is limited by the laying of natural gas line net, and cost is very huge.Due to directly on harbour
LNG power generations are carried out, natural gas line net laying can be saved and set, low cost.The main electricity consumption economic zone of Deposits in Eastern Coastal China has wide
Maritime waters resource, and LNG cargo ships can easily shuttle in these waters, and rest in the present embodiment uses combustion
The multi-functional LNG floating power generation devices side of gas-Steam Combined Cycle, and convey LNG floating power generation dresses of the LNG to the present embodiment
It sets and generates electricity, therefore there are good market prospects using its water area resource development floating power generation device.
The gas-steam combined circulating generation unit that the present embodiment uses is efficient, and stable, heat utilization rate exists
60% or more, and large and super-critical/ultra supercritical thermal power generation unit is between 40-50%；The used LNG energy is cleaning
The energy, discharge are all substantially water and carbon dioxide, almost nitrogenfree oxide and sulfide, and there are no dust discharges, to environmental protection
It is of far-reaching significance；The gas-steam combined circulating generation unit form of use, start-stop is rapid, is extremely applicable to power peak regulation.
Specifically, LNG receiving platforms 12 are additionally provided on the deck of ship type floating body 1, LNG receiving platforms 12 are for passing through hose
LNG on LNG cargo ships outside device is delivered to by pipeline shunt in each LNG holding bays 103.Ship type floating body 1 can
Rest against on quayside, LNG cargo ships rest against on 1 side of ship type floating body, i.e., ship type floating body 1 be located at LNG cargo ships and harbour it
Between, wide maritime waters resource is made full use of, land resources are not take up, is had using its water area resource development floating power generation device
There is good foreground.
Specifically, BOG compressors 13 and cooler 14, each LNG holding bays 103 are additionally provided on the deck of ship type floating body 1
Top air plenum the input ports of BOG compressors 13 is connected to by pipeline, the delivery outlet of BOG compressors 13 passes through cooler 14
It is connected to the import of the first center tube 4.It will produce the BOG of natural evaporation in LNG holding bays 103 daily, and the present embodiment
BOG in ship type floating body 1 is input to by pipeline in BOG compressors 13, this BOG compressor 13 can be driven by electro-motor 23,
Compressed BOG, which enters in aftercooler 14, to cool down, and is then collected to the first center tube 4, and the first center tube 4 is used for
The natural gas that BOG is compressed natural gas after cooling and is generated after gasifying is collected and is conveyed, and then the first center tube 4 divides
It flow in the air inlet of each gas turbine 5, each gas turbine 5 carries out work by combustion.Natural gas of the gas turbine 5 to burning
It can heat up after thering is the requirement of pressure and temperature, compressed BOG to reach pressure requirements, it is therefore desirable to which cooler 14 carries out cooling and reaches
To the temperature requirement of burning.Wherein, the condensate liquid of cooler 14 is water, this water can take fresh water or seawater outside hull by pumping
Carry out single cycle cooling.The present embodiment also makes full use of BOG to carry out combustion power generation, improves energy utilization rate.
Further, it is additionally provided with several steam turbines 15 on ship type floating body 1, is also equipped in each waste heat boiler 6
Height/middle pressure steam circuit 16, the steam output end in each height/middle pressure steam circuit 16 by pipeline by many-one or it is one-to-one in a manner of
It is connected in the air intake of each steam turbine 15, the steam output end of steam turbine 15 is connected to condensate storage by condensing plant 17
Cabin 102, is connected with the second generator 18 on the output shaft of steam turbine 15, the power output end of the second generator 18 also equal cable
It is connected to transformer room 101；Transformer in transformer room 101 is that dry-type transformer, oil-immersed transformer or gas-insulated become
Depressor.It can certainly be according to demand by transformer arrangement in the electricity that on deck, the first generator 8 and the second generator 18 are sent out
Power, which is transmitted through the cable in transformer room 101, carries out transformation.The present embodiment can according to the different setting of requirement of power generation scale,
But its basic principle is consistent.Every gas turbine 5 distinguishes coaxially connected first generator 8 in inlet end, in discarded discharge
End is all connected with a waste heat boiler 6, and height/middle pressure steam that more waste heat boilers 6 generate is input to a steam turbine 15, the steaming
Steam turbine 15 connects second generator 18, and the present embodiment is applied widely, is suitable for the transformation of different power generation scales, most
Big generated output is up to 800 megawatts.The waste heat boiler 6 of the present embodiment is chosen as three discard heat boilers, also using combustion gas wheel
Waste gas residual heat in machine 5 generates height/middle pressure steam and steam turbine 15 drive to carry out cogeneration, and the height of the present embodiment/in
It presses Steam Recovery waste heat ability strong, further improves energy utilization rate.
The quantity of gas turbine 5 and waste heat boiler 6 is all several, and the quantity of steam turbine 15 is several；It is specific and
Speech, a steam turbine 15 of waste heat boiler 6+ mono- of gas turbine 5+ mono-, as one-to-one configuration；Two gas turbine 5+ two
Mono- steam turbine 15 of platform waste heat boiler 6+, as two drag a configuration；Three waste heat boiler 6+ two of gas turbine 5+ tri- steam
Steam turbine 15, as three drag two configurations；The present embodiment can be according to different power generation scale and gas turbine 5,6 and of waste heat boiler
Other various configurations may be used in power match relationship between steam turbine 15, such as five drag three, four to drag four or three to drag first-class.
Specifically, multi-functional LNG floating power generation devices further include several oxygen-eliminating devices 24, oxygen-eliminating device 24 and waste heat boiler 6
It corresponds, the pump discharge of condensate delivery pump 10 is by the way that in pipeline shunt to each oxygen-eliminating device 24, each oxygen-eliminating device 24 passes through
The import in low-pressure steam circuit 9 and height/middle pressure steam circuit 16 in pipeline shunt to corresponding waste heat boiler 6, oxygen-eliminating device
24 steam inlet is connected to the export pipeline in low-pressure steam circuit 9.The present embodiment is removed by the method that steam heats water supply
Oxygen in water avoids each equipment in oxygen corrosion device under high temperature.
Preferably, the multi-functional LNG floating power generation devices under one-to-one pattern as shown in Figure 2 further include a deoxygenation
Device 24, oxygen-eliminating device 24 are correspondingly arranged a waste heat boiler 6, and the pump discharge of condensate delivery pump 10 passes through pipeline shunt to oxygen-eliminating device 24
In, oxygen-eliminating device 24 by low-pressure steam circuit 9 in pipeline shunt to waste heat boiler 6 and height/middle pressure steam circuit 16 into
Mouthful, the steam inlet of oxygen-eliminating device 24 is connected to the export pipeline in low-pressure steam circuit 9.
Specifically, it is further connected with water supply pipe 26 on the pipeline between the pump discharge of condensate delivery pump 10 and oxygen-eliminating device 24；Waste heat
The sewage draining exit of boiler 6 is communicated with boiler blow-off surge tank 25 by pipeline, and the gaseous phase outlet of boiler blow-off surge tank 25 passes through pipe
Road is connected to each oxygen-eliminating device 24, and the sewage draining exit of boiler blow-off surge tank 25 is connected to the outer of multi-functional LNG floating power generation devices
Portion.The loss of water is had in entire steam cycle process, the water of loss can be continuously replenished in waste heat boiler 6 from the external world.Entire
It will produce part of contaminated water in steam-return line, sewage is discharged into from waste heat boiler 6 in boiler blow-off surge tank 25, some vapor reflux
Into oxygen-eliminating device 24, sewage is then discharged from boiler blow-off surge tank 25, ensure that the cleaning of water body and recycles.
Specifically, seawater desalination system as shown in Figure 7, multi-functional LNG floating power generation devices further include sea water desalination system
System, seawater desalination system includes sea water tank 150, is communicated with water inlet pipe on sea water tank 150, sea water tank 150 by the first pipeline according to
Secondary connection ultrafiltration module 151, ultrafiltration water producing tank 152, sea-water reverse osmose module 153, first-stage reverse osmosis water tank 154, secondary reverse osmosis
Saturating module 155, desalination water tank 156, deionization module 157 and deionization water tank 158, deionization water tank 158 are connected by outlet pipe
Pass to the water inlet of water supply pipe 26；The water outlet of first-stage reverse osmosis water tank 154 passes through the second pipeline connection Drinking Water After-treatment
The water outlet of module 159, Drinking Water After-treatment module 159 is used for outer supplying drinking water；First-stage reverse osmosis water tank 154 passes through third pipe
Road is connected to the daily system of fresh water.
The present embodiment by above-mentioned seawater desalination system produce three parts water, i.e., outer supplying drinking water, the present embodiment floating
6 moisturizing of waste heat boiler (deionized water) of the domestic fresh water and gas-steam combined circulating generation unit of power generator.From sea
The seawater of water tank 150 reaches the inflow requirement of sea-water reverse osmose module 153 simultaneously by generating clean seawater after ultrafiltration module 151
It is delivered to sea-water reverse osmose module 153 by ultrafiltration water producing tank 152, manufactured primary freshwater storage is in first-stage reverse osmosis water tank
In 154, a part of fresh water is for the daily system of fresh water of the floating power generation device of the present embodiment, and most of fresh water is after drinking water
Processing module 159 is adjusted after PH, chlorination and addition minerals reach drinking water standard and is externally supplied water, and comes from first-stage reverse osmosis water tank
Desalted water is made after secondary reverse osmosis module 155 and is stored in desalination water tank 156 for 154 fresh water, is made after deionization module 157
It at deionized water, is stored in deionization water tank 158, for 6 moisturizing of waste heat boiler.The present embodiment can make full use of floating power generation dress
The each resource set purifies and desalinates into a variety of water resources for different demands, and sent out using the floating of the present embodiment
The electric power that electric installation is occurred is desalinated, energy conservation and environmental protection, and the present embodiment is used not only for harbour power generation, is also adapted for ocean work
When industry in water shortage drying harsh environment.
Further, refrigeration system as shown in Figure 8, the first heat exchange process 201 be gasifying heater 2 shell side, second
Heat exchange process 202 is the tube side of gasifying heater 2；Third heat exchange process 301 is the shell side of First Heat Exchanger 3, the 4th heat exchange stream
Journey 302 is the tube side of First Heat Exchanger 3；Pipe between the outlet of third heat exchange process 301 and the import of the second heat exchange process 202
The second heat exchanger 161 is communicated in road；The tube side outlet of second heat exchanger 161 is branched to multiple by the second center tube 162
User terminal, a plurality of clients converge into the chilled water refluxing opening of BrLi chiller 163, BrLi chiller by pipeline
163 chilled water outlet is connected to the import of the second center tube 162 by pipeline, and the tube side import of the second heat exchanger 161 connects
The middle part of the bus dump of logical a plurality of clients；The cooling water outlet and inlet of BrLi chiller 163 is cold with open air by pipeline
But the connection of tower 164 is at cooling circuit；The driving heat source import of BrLi chiller 163 is connected to steam turbine 15 by pipeline
Steam (vapor) outlet, the driving heat source of BrLi chiller 163 is exported is connected to condensate holding bay by third heat exchanger 165
102。
The above-mentioned technological process of the present embodiment constitutes refrigeration system, and this system realizes the refrigeration of two ways：Utilize LNG
The characteristic of a large amount of cold energy is discharged when gasification, and is concentrated and is vaporized as power drive lithium-bromide solution using steam thermal energy, when using vaporization
The characteristic for absorbing heat is freezed.Wherein, refrigeration modes one, third heat exchange process 301 and the second heat exchange process 202 it
Between circuit in, intermediate heating agent is cooled to low temperature when LNG gasifies in gasifying heater 2, part low temperature heating agent enters first
Certain temperature is heated to by low-pressure steam in heat exchanger 3, enters back into the second heat exchanger 161 and is changed with chilled water (chilled water) later
Heat continues cycling through in the heating agent circuit that the heating agent after heat exchange enters between third heat exchange process 301 and the second heat exchange process 202,
Chilled water is supplied to each user to use after being cooled in the second heat exchanger 161.Refrigeration modes two are taken out from steam turbine 15
The steam of part certain pressure is taken, BrLi chiller 163 is introduced and is used as driving heat source, go out from BrLi chiller 163
The steam condensation water come is down to certain temperature by third heat exchanger 165, then inputs condensate holding bay 102, chilled water (chilled water)
It is supplied to each user later into BrLi chiller 163 is cooled.It is single that chilled water after user's use returns again to refrigeration
Member is re-cooled.One of the above or two ways can be selected to freeze according to the demand of refrigerating capacity, the cold of generation can distribute
It is used to multiple users.The present embodiment can fully freeze conducive to two kinds of residual heat resources, energy conservation and environmental protection, therefore, the present embodiment
It is used not only for harbour power generation, is also adapted for when the operation of ocean in sweltering heat harsh environment.
Further, open deck framed bent 19 is also equipped on the deck of ship type floating body 1, open deck framed bent 19 is for setting
Electric wire or cable trough are set to export the electric energy after 101 transformation of transformer room, is exported convenient for electric power.
Optionally, multiple be used for LNG floating power generation device moorings in quayside is also equipped on the deck of ship type floating body 1
On mooring winch 20, ship type floating body 1 tightens hawser by mooring winch 20 on its deck and hull is tightly attached on harbour, real
Its existing stable mooring, therefore the LNG floating power generation devices mooring of the present embodiment is firm on harbour, stopping.
Another optional scheme is：Multiple connecting rods 22, each connecting rod 22 are also equipped on the deck of ship type floating body 1
On be equipped with positioning sleeve 2201, the guide pile 21 that positioning sleeve 2201 is used to be socketed on quayside.Guide pile 21 squeezes into mud line first
Following certain depth, ship type floating body 1 are dragged in the space between guide pile 21, and then there are a connecting rod 22 in hull both sides, connecting rod 22 with
Guide pile 21 connects, and realizes its stable mooring.
Further, LNG holding bays 103 are c-type tank, Type B tank or film-type cabin, and the ship type floating body 1 of the present embodiment can be set
The LNG holding bays 103 of different cabin types are set, it is applied widely.LNG holding bays 103 can also use other forms, such as A type tanks.
Further, steam turbine 15 and the second generator 18 are set on the inside or deck of ship type floating body 1, are convenient for space
Using and actual arrangement optimize, facilitate hull device layout.
In conclusion the operation principle of the present embodiment：LNG on the LNG floating power generation devices of LNG through this embodiment connects
It is closed flat in each LNG holding bays 103 that platform 12 is transported to the LNG on LNG cargo ships in ship type floating body 1 by pipeline.Herein
During device is run, the natural gas that supply gas turbine 5 does work comes from two passes, and one is in ship type floating body 1
The BOG of natural evaporation, BOG are input to by pipeline in BOG compressors 13, this BOG compressor 13 is driven by electro-motor 23, pressure
BOG after contracting, which enters in cooler 14, to cool down, and does work then into the combustion chambers burn of each gas turbine 5.It is another
Channel is that the LNG in each LNG holding bays 103 is input to by immersion pump 7 in gasifying heater 2, the day generated after gasification
Right gas compresses natural gas after cooling with BOG and converges, and is then input to the combustion chambers burn acting of each gas turbine 5.Each combustion gas
Coaxially connected first generator 8 of the inlet end of turbine 5, the exhaust gas outlet side of each gas turbine 5 are all connected with a waste heat boiler
6, each waste heat boiler profit is that two steam-return lines are heated with waste-gas heat, and one is height/middle pressure steam circuit 16, another
Item is low-pressure steam circuit 9.It is input to a vapor wheel together from height/middle pressure steam circuit 16 that more waste heat boilers 6 generate
It does work in machine 15,15 coaxially connected second generator 18 of steam turbine, the power Transmission that final second generator 18 generates is to change
Depressor room 101.Steam after acting is by becoming liquid water after condensing plant 17 and being stored in condensate holding bay 102.From more
The 4th heat exchange stream that low-pressure steam is input to First Heat Exchanger 3 by pipeline is generated in the low-pressure steam circuit 9 of platform waste heat boiler 6
In journey 302, and heat exchange is carried out with the heating agent in the first heat exchange process 201, heating agent exchanges heat in third heat exchange process 301 and second
Flow 202 carries out closed cycle circuit between the two, so as to be used in the heat transmission to gasifying heater 2 in low-pressure steam circuit 9
In the gasification and heating of LNG.Become liquid water by the low-pressure steam after First Heat Exchanger 3 and is input to condensate holding bay 102
Middle storage.Water in condensate holding bay 102 is pumped into the height in each waste heat boiler 6/middle pressure steam circuit 16 and low by immersion pump 7
Heating evaporation is carried out in pressure steam-return line 9.The electric power generated by the first generator 8 and the second generator 18 by cable connection to
In transformer room 101, the electric energy after transformation exports electric energy by open deck framed bent 19.Portion is will produce in entire steam-return line
Sewage, sewage is divided to be discharged into boiler blow-off surge tank 25 from waste heat boiler 6, some vapor flows back into oxygen-eliminating device 24, sewage
It is then discharged, ensure that the cleaning of water body and recycles from boiler blow-off surge tank 25.The present embodiment is steamed by oxygen-eliminating device 24
The method that vapour heats water supply removes the oxygen in water, avoids each equipment in oxygen corrosion device under high temperature.Combustion gas-steaming is completed since then
The power generation overall process of vapour combined cycle.
Embodiment two：
Embodiment two is preferred scheme, embodiment two and embodiment one difference lies in：Gas turbine 5 and waste heat boiler 6
Quantity be four, two steam turbines 15 are additionally provided on the deck of ship type floating body 1, are also worn in each waste heat boiler 6
There is height/middle pressure steam circuit 16, the steam output end in two height/middle pressure steam circuit 16 is by pipe influx in a steam turbine
In 15 air intake, the steam output end in other two height/middle pressure steam circuit 16 is by pipe influx in another steam turbine
In 15 air intake, the steam output end of two steam turbines 15 is connected to condensate holding bay 102, every steaming by condensing plant 17
It is respectively connected with the second generator 18 on the output shaft of steam turbine 15, the power output end of each second generator 18 also equal cable connection
To transformer room 101；Other structures are the same as embodiment one.The present embodiment uses four patterns for dragging two, further increases LNG hairs
Electric scale.
It should be appreciated that specific embodiment described above is only used for explaining the utility model, it is not used to limit this reality
With novel.By the utility model the obvious changes or variations extended out of spirit still in the utility model protection
Among range.
Claims (10)
1. a kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle, it is characterised in that：It is floating including ship type
Body (1), the ship type floating body (1) is interior to be equipped with transformer room (101), condensate holding bay (102) and several LNG holding bays
(103)；Gasifying heater (2), First Heat Exchanger (3), the first center tube are installed on the deck of the ship type floating body (1)
(4), several gas turbines (5) and several waste heat boilers (6), the gas turbine (5) and waste heat boiler (6) correspond
Ground is arranged, and the first heat exchange process (201) and the second heat exchange process for carrying out mutual heat exchange are equipped in the gasifying heater (2)
(202), the third heat exchange process (301) and the 4th heat exchange process for carrying out mutual heat exchange are equipped in the First Heat Exchanger (3)
(302)；
Immersion pump (7) is equipped in each LNG holding bays (103), the immersion pump (7) passes through pipe influx to the first heat exchange
The input port of flow (201), the delivery outlet of first heat exchange process (201) is connected to the import of the first center tube (4), described
In the outlet manifold of first center tube (4) to the air inlet of each gas turbine (5), coaxially connect on each gas turbine (5)
It is connected to the first generator (8), the equal cable connection of power output end of each first generator (8) to transformer room (101)；
The outlet port of each gas turbine (5) is connected to correspondingly in waste heat boiler (6), each waste heat boiler
(6) low-pressure steam circuit (9) is equipped in；Condensate delivery pump (10), the condensate are equipped in the condensate holding bay (102)
The pump discharge of delivery pump (10) passes through pipeline shunt to the water inlet end of each low-pressure steam circuit (9), the low-pressure steam circuit (9)
Steam output end by the import of pipe influx to the 4th heat exchange process (302), the outlet of the 4th heat exchange process (302)
It is connected in condensate holding bay (102)；The third heat exchange process (301) and the second heat exchange process (202) constitute circulation loop,
Forced circulation pump (11) is equipped in the circulation loop, and circulation has heating agent；
First heat exchange process (201) is the shell side of gasifying heater (2), and second heat exchange process (202) is that gasification adds
The tube side of hot device (2)；The third heat exchange process (301) is the shell side of First Heat Exchanger (3), the 4th heat exchange process
(302) it is the tube side of First Heat Exchanger (3).
2. a kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle according to claim 1,
It is characterized in that：BOG compressors (13) and cooler (14), each LNG holding bays are additionally provided on the deck of the ship type floating body (1)
(103) top air plenum is connected to the input port of BOG compressors (13), the output of the BOG compressors (13) by pipeline
Mouth is connected to the import of the first center tube (4) by cooler (14).
3. special according to a kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle of claims 1 or 2
Sign is：It is additionally provided with several steam turbines (15) on the ship type floating body (1), is also equipped in each waste heat boiler (6)
Height/middle pressure steam circuit (16), the steam output ends of each height/middle pressure steam circuit (16) is by pipeline with many-one or one-to-one
Mode is connected in the air intake of each steam turbine (15), and the steam output end of the steam turbine (15) passes through condensing plant (17)
It is connected to condensate holding bay (102), is connected with the second generator (18) on the output shaft of the steam turbine (15), described second
The power output end of generator (18) also equal cable connection to transformer room (101)；Transformer in the transformer room (101)
For dry-type transformer, oil-immersed transformer or gas-insulated transformer.
4. a kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle according to claim 3,
It is characterized in that：The multi-functional LNG floating power generation devices further include several oxygen-eliminating devices (24), the oxygen-eliminating device (24) and waste heat
Boiler (6) corresponds, and the pump discharge of the condensate delivery pump (10) is by pipeline shunt to each oxygen-eliminating device (24), each
Oxygen-eliminating device (24) passes through low-pressure steam circuit (9) in pipeline shunt to corresponding waste heat boiler (6) and height/middle pressure steam
The steam inlet of the import in circuit (16), the oxygen-eliminating device (24) is connected to the export pipeline of low-pressure steam circuit (9).
5. a kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle according to claim 4,
It is characterized in that：It is further connected with water supply pipe (26) on pipeline between the pump discharge and oxygen-eliminating device (24) of the condensate delivery pump (10)；
The sewage draining exit of the waste heat boiler (6) is communicated with boiler blow-off surge tank (25), the boiler blow-off surge tank by pipeline
(25) gaseous phase outlet is connected to each oxygen-eliminating device (24), the sewage draining exit connection of the boiler blow-off surge tank (25) by pipeline
To the outside of multi-functional LNG floating power generation devices.
6. a kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle according to claim 5,
It is characterized in that：The multi-functional LNG floating power generation devices further include seawater desalination system, and the seawater desalination system includes seawater
Case (150) is communicated with water inlet pipe on the sea water tank (150), and the sea water tank (150) is sequentially communicated ultrafiltration by the first pipeline
It is module (151), ultrafiltration water producing tank (152), sea-water reverse osmose module (153), first-stage reverse osmosis water tank (154), secondary reverse osmosis
Module (155), desalination water tank (156), deionization module (157) and deionization water tank (158), the deionization water tank (158)
The water inlet of the water supply pipe (26) is connected to by outlet pipe；The water outlet of the first-stage reverse osmosis water tank (154) passes through
The water outlet of two pipeline connection Drinking Water After-treatment modules (159), the Drinking Water After-treatment module (159) supplies to drink for outer
Water；The first-stage reverse osmosis water tank (154) passes through the daily system of third pipeline connection fresh water.
7. a kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle according to claim 5,
It is characterized in that：First heat exchange process (201) is the shell side of gasifying heater (2), and second heat exchange process (202) is gas
Change the tube side of heater (2)；The third heat exchange process (301) is the shell side of First Heat Exchanger (3), the 4th heat exchange process
(302) it is the tube side of First Heat Exchanger (3)；The outlet of the third heat exchange process (301) and the second heat exchange process (202) into
It is communicated with the second heat exchanger (161) in pipeline between mouthful；The tube side outlet of second heat exchanger (161) passes through the second center
Pipeline (162) branches to a plurality of clients, and a plurality of clients converge into the chilled water of BrLi chiller (163) by pipeline
Refluxing opening, the chilled water outlet of the BrLi chiller (163) by pipeline be connected to the second center tube (162) into
Mouthful, the middle part of the bus dump of the tube side inlet communication a plurality of clients of second heat exchanger (161)；The lithium bromide refrigerating
The cooling water outlet and inlet of unit (163) is connected into cooling circuit by pipeline with outdoor cooling tower (164)；The lithium bromide refrigerating
The driving heat source import of unit (163) is connected to the steam (vapor) outlet of steam turbine (15), the lithium bromide refrigerator by pipeline
The driving heat source of group (163) is exported is connected to condensate holding bay (102) by third heat exchanger (165).
8. a kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle according to claim 4,
It is characterized in that：Open deck framed bent (19), the open deck framed bent (19) are also equipped on the deck of the ship type floating body (1)
Electric energy for electric wire or cable trough to be arranged to export after transformer room (101) transformation.
9. a kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle according to claim 4,
It is characterized in that：The LNG holding bays (103) are c-type tank, Type B tank or film-type cabin.
10. a kind of multi-functional LNG floating power generation devices using Gas-steam Combined Cycle according to claim 3,
It is characterized in that：The steam turbine (15) and the second generator (18) are set on the inside or deck of ship type floating body (1).
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| CN107905861A (en) * | 2017-05-26 | 2018-04-13 | 惠生（南通）重工有限公司 | A kind of multi-functional LNG floating power generation devices using Combined cycle gas-steam turbine |
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| CN107905861A (en) * | 2017-05-26 | 2018-04-13 | 惠生（南通）重工有限公司 | A kind of multi-functional LNG floating power generation devices using Combined cycle gas-steam turbine |
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Address after: 226000 port industrial zone 3, Nantong Economic and Technological Development Zone, Jiangsu Province Patentee after: Wison Clean Energy Technology Group Co.,Ltd. Country or region after: China Address before: No. 189 Jianghai Road, Industrial Zone 3, Nantong Economic Development Zone, Jiangsu Province, 226000 Patentee before: WISON(NANTONG) HEAVY INDUSTRY Co.,Ltd. Country or region before: China |
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