CN206889110U - It is a kind of to integrate efficient, economize on water, the controllable co-generation system of gas turbine four - Google Patents
It is a kind of to integrate efficient, economize on water, the controllable co-generation system of gas turbine four Download PDFInfo
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- CN206889110U CN206889110U CN201720805118.0U CN201720805118U CN206889110U CN 206889110 U CN206889110 U CN 206889110U CN 201720805118 U CN201720805118 U CN 201720805118U CN 206889110 U CN206889110 U CN 206889110U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
It is efficient to the utility model is related to a kind of collection,Water saving,The controllable co-generation system of gas turbine four in one,Can effectively solve efficiently,Water saving,It is controllable,The co-generation system of gas turbine four of circulation and zero-emission in factory,Technical scheme is,System includes gas turbine,Aerial cooler,Coal gasifier,Cyclone separator,Refrigeration machine,Heat pump,Rankine cycle system and low-temperature flue gas processing system,The utility model makes full use of utilizable resource wind energy and solar energy in plant area,Efficiently controllable gas turbine combustion and working system,More economically,Adjustable co-generation system of thermoelectric cold and hot water four,Supersonic speed isolation technics is applied to Gas Turbine Plant first,With dewatering efficiency height,Safety and stability,The advantages of effectively preventing low-temperature corrosion,Zero-emission is realized while low-temperature flue gas efficiently utilizes,UTILIZATION OF VESIDUAL HEAT IN is reasonable,The thermal efficiency reaches more than 42%,The combined cycle thermal efficiency is up to more than 63%.
Description
Technical field
Gas turbine engine systems are the utility model is related to, it is particularly a kind of to integrate efficient, economize on water, controllable gas turbine
Four co-generation systems.
Background technology
Gas turbine is widely applied in power field, due to the compact of it, high power, installed etc. it is excellent
Point, a kind of widely used dynamic power machine is made it, the thermal efficiency of 390MW 9F gas turbines is left 40% at present
The right side, the combined cycle thermal efficiency are up to 58% or so.
But in existing combined cycle, exist heat waste, water consumption is big, heating-cooling-power cogeneration is uncontrollable can not
The problems such as tune, low-temperature corrosion and working medium waste, how to solve these problems, is those skilled in the art's concern.
Utility model content
For the above situation, to overcome the deficiency of prior art, the purpose of the utility model be just to provide a kind of collection efficiently,
Water saving, the controllable co-generation system of gas turbine four in one, can effectively solve efficient, water saving, can control, circulation and zero in factory
The co-generation system of gas turbine four of discharge.
The utility model solve technical scheme be：
A kind of to integrate efficient, economize on water, the controllable co-generation system of gas turbine four, the system includes gas turbine, sky
Gas Cooler, coal gasifier, cyclone separator, refrigeration machine, heat pump, Rankine cycle system and low-temperature flue gas processing system；
The Cryogenic air outlet of aerial cooler is connected with the air inlet of compressor, the gas outlet of compressor respectively with burning
The air intlet of room is connected with the air inlet of compressed air cylinder, is provided with the power intake of compressor for providing power
Wind energy conversion system, the carbon monoxide and hydrogen outlet of coal gasifier are connected with the fuel inlet of combustion chamber, the high-temperature flue gas row of combustion chamber
Outlet is connected with the air inlet of gas turbine, and the clutch end of gas turbine is connected with generator, the high temperature cigarette of gas turbine
Gas outlet is connected with the high-temperature flue gas air inlet of waste heat boiler；
The steam (vapor) outlet of waste heat boiler is connected with the air inlet of high pressure cylinder, equipped with stretching into and waste heat on the gas outlet of high pressure cylinder
Reheat vapor cycle pipeline in boiler, the outlet side of reheat vapor cycle pipeline are connected with the air inlet of intermediate pressure cylinder, the gas outlet of intermediate pressure cylinder
It is connected with the air inlet of low pressure (LP) cylinder, forms the multistage steam acting power output structure with circulation reheat function；
The gas outlet of low pressure (LP) cylinder is connected with the air inlet of condenser, low-pressure heater that the liquid outlet of condenser is concatenated,
Oxygen-eliminating device and high-pressure heater are connected with the inlet of waste heat boiler, form heated water re-circulation's structure of steam；
Steam outlet port is provided with intermediate pressure cylinder, steam outlet port is divided into equipped with overheat extraction line, overheat extraction line
Two-way, wherein the overheat gas outlet of extraction line all the way is connected with the air inlet of combustion chamber, the overheat extraction steam pipe of another way
Road is connected after being each passed through the vaporization chamber of refrigeration machine and heat pump with hot-water heater, forms refrigeration machine, heat pump and hot-water heater
The first auxiliary thermal source provide structure, overheat extraction line on be provided with for control overheat extraction flow the 4th valve；
The steam (vapor) outlet of hot-water heater is connected with the air inlet of condenser, forms low temperature and low pressure steam and recycles knot
Structure；
The exhanst gas outlet of waste heat boiler is connected with the air inlet mouth of SCR reactors, gas outlet and the eddy flow point of SCR reactors
Air inlet from device is connected, and the circulating chilled water pipeline for stretching into air cooling machine is connected with the liquid outlet of cyclone separator, forms
The auxiliary temperature-reducing structure of air cooling machine；
The exhanst gas outlet of cyclone separator is connected with the import of threeway；
Medium temperature off-gas recovery pipeline is housed, medium temperature off-gas recovery pipeline passes through Rankine cycle on first gas outlet of threeway
It is connected after the heating chamber of the organic working medium heater of system with low-temperature flue gas processing system air inlet, threeway is heated with organic working medium
The 5th valve for controlling flow is provided with the first medium temperature off-gas recovery pipeline between device；
Second gas outlet of threeway is connected with the air inlet of low-pressure heater, forms the feedwater heating knot of waste heat boiler
Structure；Here the feedwater of waste heat boiler refers to the water after the steam condensation in condenser out, is come out using cyclone separator
Medium temperature flue gas the feedwater is heated, complete waste heat boiler watering cycle, take full advantage of waste heat；
Medium temperature flue gas pipeline is housed, medium temperature flue gas pipeline is each passed through refrigeration on the 3rd gas outlet of threeway
It is connected after the vaporization chamber of machine and heat pump with hot-water heater, forms the second auxiliary thermal source of refrigeration machine, heat pump and hot-water heater
Structure is provided,
The gas outlet of the medium temperature flue gas pipeline being connected with hot-water heater and overheat extraction line respectively with low temperature cigarette
The air inlet of gas processing system is connected；
The first valve is provided between compressor and compressed air cylinder；
The second valve is provided between coal gasifier and combustion chamber.
Described cyclone separator is supersonic cyclone separator, and it includes rotational flow generator, the Lavalle being sequentially connected
Jet pipe, liquid separation section and outlet pipeline section, the eddy flow for producing tangential swirl for making to enter flue gas is provided with rotational flow generator
Blade, liquid outlet is provided with liquid separation section, the import of circulating chilled water pipeline is connected with the liquid outlet of liquid separation section, gone out
The import that the outlet with the threeway that hinder whirlpool blade outlet pipeline section for the rectification of rectification are provided with tracheae section is connected.
Described Rankine cycle system includes organic working medium heater, steam turbine, generator or driving cycle pump, condenser
And booster, the outlet side of machine working medium heater are connected with the inlet end of steam turbine, the clutch end and generator of steam turbine
Or the power intake of driving cycle pump is connected, the outlet side of steam turbine is connected with the inlet end of condenser, and condenser goes out liquid
End is connected with the liquid feeding end of booster, and the outlet end of booster is connected with the liquid feeding end of machine working medium heater, forms steam circulation
Power output structure.
Described low-temperature flue gas processing system includes calcium oxide stove, calcining furnace and the separation for separating oxygen and nitrogen
Device, the gas outlet of the medium temperature flue gas pipeline being connected with hot-water heater and overheat extraction line enter with calcium oxide stove respectively
Gas port is connected, and the calcium carbonate outlet of calcium oxide stove is connected with the import of calcining furnace, the gas outlet of calcium oxide stove and entering for separator
Gas port is connected, and forms fume treatment structure.
The oxygen discharge of described separator is connected with the air inlet of combustion chamber, forms oxygen recovery and utilizes structure.
The described co-generation system of gas turbine four also includes solar panels and solar thermal collector, the output end of solar panels
It is connected with solar thermal collector, forms the auxiliary feedwater heating arrangement of waste heat boiler.
Compared with prior art, the utility model method has technique effect beneficial below：
(1) utilizable resource in plant area is made full use of --- wind energy and solar energy
When usually having wind, compressor work is driven using the blade of wind energy conversion system, Cryogenic air is stored in compression
In air tank, when needing to adjust load or load peak, gas tank can be opened, the air allowed in tracheae enters combustion chamber,
The extra output of compressor need not so be increased, and adjusted rapider；, can be with when gas tank compressed-air-storing is full
Sold as industrial products, additional income, when usually sunlight is abundant, using the solar heat-collection plate of plant area, the sun
It can collect, in steam turbine, thermal source can be used as to heat feedwater, without being drawn gas from steam turbine
Heating, improve the absolute internal efficiency of steam turbine workmanship；
(2) efficiently controllable gas turbine combustion and working system
Conventional gas turbine inlet is normal temperature air, and the power output of gas turbine is the function of environment temperature, environment
Temperature often raises 1 DEG C, and power output just declines 0.3% to 0.5%, and this loss is for Combined Cycle Unit in summer generating meeting
Produce larger problem；The utility model is in advance cooled down normal temperature air by aerial cooler, has been inherently eliminated environment temperature
Spend the influence for gas turbine proficiency so that gas turbine working stability, power improve, and low-temperature receiver is from caused by system
Low-temperature condensate, it is not necessary to which extra work is cooled down, while the part overheat of steam turbine is drawn gas and introduces combustion chamber, passes through pipe
The 4th valve on road controls the amount of drawing gas, and the benefit for introducing steam is can not only to control nitrogen oxides volume to generate, so as to subtract
Few discharged nitrous oxides, combustion can also be increased by the mass flow increase and higher specific heat of the combustion product for increasing turbine
Turbine acc power, the workmanship of usual gas turbine and steam turbine compare for 2:1, a steam acting is sacrificed, brings two parts of combustions
Gas-turbine does work, and generally speaking increases overall output power；
(3) the steam turbine working system of high-efficiency water-saving
High-temperature flue gas is fed water by heating in waste heat boiler, feedwater is changed into superheated steam and is done work, and superheated steam is first
Done work into high pressure cylinder, ensure that the steam of high-quality is not lost with acting, be again introduced into waste heat from high pressure cylinder out
Boiler carries out reheating, can improve steam turbine cycle internal efficiency, and acting completes final vacuum and enters condenser, and condensation working medium is warp
The normal temperature circulation water crossed after aerial cooler, coolant-temperature gage can be more slightly lower than conventional gas turbines, and cooling effect also can be more preferable, because
Cooling water comes from water caused by internal system, without external recirculated water, has significantly saved conventional regimen condition, this system can take
For traditional Air-cooled Unit so that unit can also use clammy circulation even in arid area, substantially increase doing for unit
Function power and efficiency；
(4) more economical, adjustable thermoelectric cold and hot water four co-generation system
Traditional heating-cooling-power cogeneration system is to sacrifice steam turbine part acting generating capacity, allows high-quality steam to go
Heat supply or refrigeration, optimal economic benefit is reached in some period, in the utility model, by two valves, one
The medium temperature flue gas separated in control cyclone separator, the overheat that a control is extracted out from intermediate pressure cylinder draw gas (superheated steam),
Pass through the supplement of flue gas, it is possible to reduce or be not pumped through heat and draw gas, can also UTILIZATION OF VESIDUAL HEAT IN while generating more electric in the hope of reaching
Come heat supply and refrigeration, the ratio of steam and flue gas is controlled by the valve on both regulations pipeline according to user's request；With this
Meanwhile a dual-purpose motor and control clutch can be also equipped with systems, the both ends of dual-purpose motor are respectively at heat pump and system
Cold is connected, this configuration can distribute heat supply and go refrigeration superheated steam (or medium temperature flue gas) flow, so as to
Winter more heat supplies, summer freeze more, and avoid the trouble of traditional heat two independent pipelines of cold alliance needs, add control
System, reduces investment；Steam flue-gas temperature after refrigeration and heating only has thirties degree, higher than environment temperature, passes through one
Individual hot-water heater, using its last point energy, user and factory can be given to provide endlessly hot water, realize tetrad
Production；
(5) supersonic speed isolation technics is applied to Gas Turbine Plant first, there is dewatering efficiency height, safety and stability, have
The advantages of effect prevents low-temperature corrosion.
Flue gas from waste heat boiler out there is gas to have 100 DEG C or so, its composition mainly have water vapour, oxygen, carbon dioxide,
Nitrogen and nitrogen oxides, usual power plant are that flue gas is directly discharged by chimney, cause energy dissipation and greenhouse gases pollution,
If carrying out UTILIZATION OF VESIDUAL HEAT IN to this partial fume, temperature declines, and water vapour can become aqueous water at first, and sour gas is dissolved in water,
Acid is formed, causes low-temperature corrosion problem；
Etching problem is resolved by pioneering supersonic condensing partition method.Because it can also be produced by out of stock system
Producing water vapor, so removing nitrogen oxides at first, it is contemplated that temperature only has 100 degrees Celsius, so selecting SCR reactors to take off
Pin, flue gas enters supersonic cyclone separator afterwards, tangential swirl is produced in the presence of rotational flow generator first, according to angular motion
Law of conservation is measured, tangential velocity can constantly increase, and at the same time, flue gas flows through Laval nozzle (also known as supersonic nozzle), temperature
Degree and pressure reduce suddenly, and water vapour condenses into droplet at first, in the presence of tangential swirl centrifugal force, due to gas and liquid
Volume density is different, and the liquid film that droplet is flowed vertically by wall, formation, liquid is discharged by leakage fluid dram, and residual gas then leads to
The effect of diffuser pipe, temperature and pressure are gone up after crossing, and have been achieved in that the removing of water vapour, due to the liquid of removing out
State coolant-temperature gage is very low, initially enters aerial cooler and normal temperature air is cooled down, and water temperature is close to environment temperature after the completion of heat exchange
Degree, just having can use as the recirculated water of the condenser in steam turbine, and this part water can be used as system afterwards
Moisturizing or conventional water, this method that water is produced using process itself cause power plant water to be greatly decreased；When not having in flue gas
Water vapour, temperature and pressure so use substantially either with or without changing and just fundamentally solve low-temperature corrosion
Problem, reduce the use of anticorrosion material, reduce investment, add safety；
When the fuel for entering combustion chamber becomes natural gas, a small amount of unburnt hydro carbons is dehydrated by supersonic speed eddy flow
Device can also be separated, and while realizing dehydration, carry out hydro carbons recovery, add the availability of the energy；
(6) zero-emission is realized while low-temperature flue gas efficiently utilizes
Medium temperature flue gas after dehydration is divided into three whereabouts by a threeway, and each pipeline has for controlling
Valve：First, which goes to refrigeration machine and heat pump, reduces the amount of drawing gas of superheated steam, improves steam turbine power generation amount, complete heat supply and
After refrigeration, also part of waste heat enters hot-water heater, so as to get hot water, realizes hot, electric, cold and hot water four coproduction；
Second feedwater for going to heating steam turbine system, because being influenceed by weather, solar energy heating feedwater can be unstable
Fixed, this just needs to be used as supplement by introducing flue gas to heat feedwater；
3rd is gone to the Rankine cycle that Rankine cycle system participates in organic working medium, in the same circumstances, organic working medium
The latent heat of vaporization is much smaller than water vapour, can more make full use of tow taste heat, while organic working medium boiling point is relatively low, gives low-grade
Energy, it can just seethe with excitement and become the steam that does work, organic working medium freezing point is relatively low, can give off energy at a lower temperature, cold
Cold day gas can increase processing, and the condenser in Rankine cycle system is also without increase frost protection, also without etching mechanism etc.
Problem, for medium temperature fume afterheat, it is most suitable but, in system in condenser recirculated water by supersonic cyclone separator point
Separate out the low temperature liquid water come to serve as, organic rankie cycle utilizes waste heat so that the heat loss of flue gas is reduced, and is generated electricity
Amount increase, in view of the particularity that gas turbine exhaust smoke level is big so that organic working medium generates electricity completely can be with driving cycle pump even factory
Electricity consumption, it is not necessary to set up the small steam turbine of power plant, unit efficiency is improved, realized energy-saving；
The complete low-temperature flue gas of heat utilization is close to environment temperature, and its composition is carbon dioxide, nitrogen and oxygen, in order to realize zero
Discharge and it is made full use of, flue gas passes through a calcium oxide stove first, and carbon dioxide fully reacts with calcium oxide
Calcium carbonate is generated, a part can directly go directly to use as the raw material of industry, and another part can go calcining furnace to calcine, to receive
Collect pure carbon dioxide, while the calcium oxide generated can also supplement as the reactant of calcium oxide stove；At this moment flue gas becomes nitrogen
The mixture of gas and oxygen, it is different using the two boiling point, nitrogen and oxygen can be separated by refrigeration machine, industrially divided
Highly developed from the method for both gases, nitrogen can be reclaimed directly, and oxygen can then enter combustion chamber so that burning
More fully, acting flow further increases, and improves the burning of combustion turbine power and calcining furnace so that calcination reaction is more
Fully, zero-emission and flue gas complete utilization are achieved in.
By the above situation it should be apparent that the coproduction system architecture novel and unique of the utility model gas turbine four, remaining
Heat utilization is reasonable, and good technique effect is achieved through practical application, in the practical application of 390MW 9F gas turbines, heat
Efficiency reaches more than 42%, and the combined cycle thermal efficiency is up to more than 63%, and social and economic benefit is notable.
Brief description of the drawings
Fig. 1 is the frame connection diagram of the co-generation system of gas turbine four of the present invention.
Fig. 2 is the structural representation of cyclone separator of the present invention.
Embodiment
Specific embodiment of the present utility model is described in further detail with reference to embodiments.
The utility model is a kind of to be integrated efficient, economizes on water, the controllable co-generation system of gas turbine four, and the system includes combustion
Gas-turbine, aerial cooler, coal gasifier, cyclone separator, refrigeration machine, heat pump, Rankine cycle system and low-temperature flue gas processing
System；
The Cryogenic air outlet of aerial cooler is connected with the air inlet of compressor, the gas outlet of compressor respectively with burning
The air intlet of room is connected with the air inlet of compressed air cylinder, is provided with the power intake of compressor for providing power
Wind energy conversion system, the carbon monoxide and hydrogen outlet of coal gasifier be connected with the fuel inlet of combustion chamber, the high-temperature flue gas of combustion chamber
Outlet is connected with the air inlet of gas turbine, and the clutch end of gas turbine is connected with generator, the high temperature of gas turbine
Exhanst gas outlet is connected with the high-temperature flue gas air inlet of waste heat boiler；
The steam (vapor) outlet of waste heat boiler is connected with the air inlet of high pressure cylinder, equipped with stretching into and waste heat on the gas outlet of high pressure cylinder
Reheat vapor cycle pipeline in boiler, the outlet side of reheat vapor cycle pipeline are connected with the air inlet of intermediate pressure cylinder, the gas outlet of intermediate pressure cylinder
It is connected with the air inlet of low pressure (LP) cylinder, forms the multistage steam acting power output structure with circulation reheat function；
The gas outlet of low pressure (LP) cylinder is connected with the air inlet of condenser, low-pressure heater that the liquid outlet of condenser is concatenated,
Oxygen-eliminating device and high-pressure heater are connected with the inlet of waste heat boiler, form heated water re-circulation's structure of steam；
Steam outlet port is provided with intermediate pressure cylinder, steam outlet port is divided into equipped with overheat extraction line, overheat extraction line
Two-way, wherein the overheat gas outlet of extraction line all the way is connected with the air inlet of combustion chamber, the overheat extraction steam pipe of another way
Road is connected after being each passed through the vaporization chamber of refrigeration machine and heat pump with hot-water heater, forms refrigeration machine, heat pump and hot-water heater
The first auxiliary thermal source structure is provided, overheat the 4th valve being provided with extraction line for controlling overheat extraction flow, the
Four valves can be set respectively according to actual conditions on the branch pipe(tube) being connected with each part, can also be set on main conduit；
The steam (vapor) outlet of hot-water heater is connected with the air inlet of condenser, forms low temperature and low pressure steam and recycles knot
Structure；
(also known as Benitration reactor, the flue gas for removing waste heat boiler go out the exhanst gas outlet of waste heat boiler with SCR reactors
Mouthful discharge medium temperature nitrogen oxides in effluent) air inlet mouth be connected, the gas outlet of SCR reactors and the air inlet of cyclone separator
Mouth is connected, and the circulating chilled water pipeline for stretching into air cooling machine is connected with the liquid outlet of cyclone separator, forms air cooling machine
Auxiliary temperature-reducing structure；
Entered first by circulating chilled water pipeline for low temperature liquid water, low temperature liquid water from what cyclone separator was separated
Air cooling machine cools down to normal temperature air, and water temperature forms normal temperature circulation water close to environment temperature after the completion of heat exchange, and normal temperature follows
Ring water just has and can used as the recirculated water of the condensing engine in steam turbine, and this part water can be used as system afterwards
Moisturizing or conventional water, this method that water is produced using process itself cause power plant water to be greatly decreased；
Simultaneously because by cyclone separator by flue gas water separate, when in flue gas without water vapour, temperature and pressure
Power so uses substantially either with or without changing and just fundamentally solves the problems, such as low-temperature corrosion, reduce anticorrosion
The use of material, reduce investment, add safety；
The exhanst gas outlet of cyclone separator is connected with the import of threeway；
Medium temperature off-gas recovery pipeline is housed, medium temperature off-gas recovery pipeline passes through Rankine cycle on first gas outlet of threeway
It is connected after the heating chamber of the organic working medium heater of system with low-temperature flue gas processing system air inlet, threeway is heated with organic working medium
The 5th valve for controlling flow is provided with the first medium temperature off-gas recovery pipeline between device；
Second gas outlet of threeway is connected with the air inlet of low-pressure heater, forms the feedwater heating knot of waste heat boiler
Structure；Here the feedwater of waste heat boiler refers to the water after the steam condensation in condenser out, is come out using cyclone separator
Medium temperature flue gas the feedwater is heated, complete waste heat boiler watering cycle, take full advantage of waste heat；
Medium temperature flue gas pipeline is housed, medium temperature flue gas pipeline is each passed through refrigeration on the 3rd gas outlet of threeway
It is connected after the vaporization chamber of machine and heat pump with hot-water heater, forms the second auxiliary thermal source of refrigeration machine, heat pump and hot-water heater
Structure is provided,
The gas outlet of the medium temperature flue gas pipeline being connected with hot-water heater and overheat extraction line respectively with low temperature cigarette
The air inlet of gas processing system is connected；
The first valve is provided between compressor and compressed air cylinder；
The second valve is provided between coal gasifier and combustion chamber；
Described refrigeration machine is lithium bromide refrigerator.
To ensure using effect：
Described cyclone separator is supersonic cyclone separator, and it includes rotational flow generator 1, the Lavalle being sequentially connected
Jet pipe 3, liquid separation section 4 and outlet pipeline section 6, it is provided with rotational flow generator 1 and produces tangential swirl for making to enter flue gas
Swirl vane 2, liquid outlet 5, the import of circulating chilled water pipeline and the liquid outlet 5 of liquid separation section 4 are provided with liquid separation section 4
It is connected, the import phase of outlet with threeway that the outlet pipeline section 6 of whirlpool blade 7 is hindered for the rectification of rectification is provided with outlet pipeline section 6
Even；
The swirl vane 2 can use E186 aviation aerofoil profiles.
Described cyclone separator can also use the new supersonic cyclone separator flow field analyses of such as Korean-Chinese conjunction to be commented with performance
Estimate [J] chemical industry progress, 2016,35 (9)：New supersonic cyclone separator in 2715-2720.
Described Rankine cycle system includes organic working medium heater, steam turbine, generator or driving cycle pump, condenser
And booster, the outlet side of machine working medium heater are connected with the inlet end of steam turbine, the clutch end and generator of steam turbine
Or the power intake of driving cycle pump is connected, the outlet side of steam turbine is connected with the inlet end of condenser, and condenser goes out liquid
End is connected with the liquid feeding end of booster, and the outlet end of booster is connected with the liquid feeding end of machine working medium heater, forms steam circulation
Power output structure.
Organic working medium in described organic working medium heater：By calculating, mass ratio is used in the design as 0.56:
0.44 R245fa (pentafluoropropane) and cyclohexane (hexahydrobenzene) non-azeotrope mixed working substances as organic circulation working medium,
Heat transfer process can be made to be exchanged heat closest to preferable.
Described low-temperature flue gas processing system includes calcium oxide stove, calcining furnace and the separation for separating oxygen and nitrogen
Device, the gas outlet of the medium temperature flue gas pipeline being connected with hot-water heater and overheat extraction line enter with calcium oxide stove respectively
Gas port is connected, and the calcium carbonate outlet of calcium oxide stove is connected with the import of calcining furnace, the gas outlet of calcium oxide stove and entering for separator
Gas port is connected, and forms fume treatment structure；The oxygen discharge of described separator is connected with the air inlet of combustion chamber, forms oxygen
Gas recycles structure.
The described co-generation system of gas turbine four also includes solar panels and solar thermal collector, the output end of solar panels
It is connected with solar thermal collector, forms the auxiliary feedwater heating arrangement of waste heat boiler；The output end and low pressure of solar thermal collector
Heater is connected, and using the solar heat-collection plate for being arranged on plant area, solar energy collecting is got up, can in steam turbine
Heated using the feedwater as thermal source to waste heat boiler, without carrying out heating of drawing gas from gas turbine, improve combustion steamer
The absolute internal efficiency of machine acting.
Circulating water afterheat Application way in a kind of gas turbine, this method are entered using the above-mentioned co-generation system of gas turbine four
OK, comprise the following steps that：
Step 1, normal temperature air air inlet cooler become Cryogenic air, and Cryogenic air enters by compressor compression
Combustion chamber, carbon monoxide and hydrogen from coal gasifier out enter combustion chamber, and combustion reaction, generation occurs with Cryogenic air
A large amount of high-temperature flue gas simultaneously enter expansion work in gas turbine, drive electrical power generators, form the output structure of electric energy, pass through sky
Gas Cooler in advance cools down normal temperature air, has been inherently eliminated influence of the environment temperature for gas turbine proficiency so that
Gas turbine working stability, power improve；
The wind energy conversion system for providing power is provided with the power intake of compressor simultaneously, wind-driven generator utilizes flat
When wind energy Cryogenic air is compressed in compressed air cylinder, for peak regulation when use；
Step 2, the exhaust temperature of gas turbine belong to high-temperature flue gas up to 650 DEG C to 700 DEG C, and high-temperature flue gas enters waste heat
Boiler exchanges heat with feedwater, feedwater is become the superheated steam of HTHP, and superheated steam does work into high pressure cylinder, high pressure cylinder
Steam discharge, which is re-introduced into waste heat boiler, carries out reheat vapor cycle, is done work into high pressure cylinder, and a part of steam is extracted in intermediate pressure cylinder
Combustion chambers burn before participation, increase gas turbine acting, is partly into refrigerator and heat pump is heated and freezed, form
Using the hot gas of waste heat, the output structure of cold air, each big I of pipeline big flow is realized by adjusting the 4th valve, middle pressure
The exhaust of cylinder is done work into low pressure (LP) cylinder, and low pressure (LP) cylinder steam discharge enters condenser, the cool water circulating pipe on cyclone separator liquid outlet
Road can stretch into condenser, and low temperature liquid water cools down its steam as recirculated water as caused by cyclone separator, by with the sun
The feed heating system that energy heat collector and the medium temperature flue gas of cyclone separator exhanst gas outlet discharge collectively constitute, heats condensate
To desired boiler feedwater, a hot water circuit is completed.
Step 3, the smoke components by waste heat boiler are nitrogen oxides, oxygen, nitrogen, carbon dioxide and water vapour, by
New water vapour can be produced in out of stock, so denitrating flue gas is first carried out by SCR reactors first, because flue-gas temperature only has
100 DEG C or so, can only be out of stock using SCR denitration method, the flue gas after denitration enters cyclone separator, first in rotational flow generator
Effect is lower to produce tangential swirl, and according to angular momentum conservation law, tangential velocity can constantly increase, and at the same time, flue gas flows through drawing
Wa Er jet pipes (also known as supersonic nozzle), temperature and pressure reduces suddenly, and water vapour reaches hypersaturated state and condensed at first,
In the presence of tangential swirl centrifugal force, tangential swirl is produced, due to the difference of centrifugal force, droplet is thrown toward wall, is formed
The liquid film flowed vertically, is discharged by liquid outlet, and remaining gas then passes through a diffuser, and temperature and pressure is gone up
Discharged after hindering whirlpool blade rectification by rectification；Because the liquid coolant-temperature gage separated is very low, so for cooling down into empty
The normal temperature air of Gas Cooler, the recirculated water for being used as condenser again afterwards carry out condensing vapour, finally as system water supplement and
Domestic water uses, and because this is caused water, and flow is very big in systems, greatlys save conventional water so that punja
Area becomes possibility with clammy circulation；
Step 4, three whereabouts are connected with by three from the medium temperature flue gas after cyclone separator dehydration, first goes to refrigeration machine
Reduce the amount of drawing gas of superheated steam with heat pump, improve steam turbine power generation amount, after completing heat supply and refrigeration, also part of waste heat
Into hot-water heater, so as to get hot water, realize hot, electric, cold and hot water four coproduction；
Second feedwater for going to heating steam turbine system, because being influenceed by weather, solar energy heating feedwater can be unstable
Fixed, this just needs to be used as supplement by introducing flue gas to heat feedwater；
3rd is gone to the Rankine cycle that Rankine cycle system participates in organic working medium：Liquid organic working medium is in medium temperature flue gas
Under heating, it is easy to become the gaseous organic matter of certain pressure and temperature, done work subsequently into turbine expansion, this part hair
Electricity can meet the use of station service, while organic working medium steam turbine can be made to drive the air driven pump in factory, reduce special small
The investment of steam turbine, the organic working medium for completing acting become liquid organic working medium under the cooling of water at low temperature aqueous water, by boosting
Pump is again introduced into organic working medium heater, completes a circulation；
Each whereabouts of medium temperature flue gas has the valve for controlling；
Step 4, for the complete low-temperature flue gas of UTILIZATION OF VESIDUAL HEAT IN close to environment temperature, its composition is carbon dioxide, nitrogen and oxygen,
In order to realize zero-emission and it be made full use of, flue gas passes through a calcium oxide stove, carbon dioxide and oxidation first
Calcium fully reacts generation calcium carbonate, and a part can directly go directly to use as the raw material of industry, and another part can go to calcine
Stove is calcined, and to collect pure carbon dioxide, while the calcium oxide generated can also supplement as the reactant of calcium oxide stove；At this moment
Flue gas becomes the mixture of nitrogen and oxygen, different using the two boiling point, and nitrogen and oxygen can be separated by refrigeration machine,
The method for industrially separating both gases is highly developed, and nitrogen can be reclaimed directly, and oxygen can then enter burning
Room so that burning is more abundant, and acting flow further increases, and improves the burning of combustion turbine power and calcining furnace so that
Calcination reaction is more abundant, is achieved in zero-emission and flue gas complete utilization.
Claims (6)
1. a kind of integrate efficient, economize on water, the controllable co-generation system of gas turbine four, it is characterised in that the system includes combustion
Gas-turbine, aerial cooler, coal gasifier, cyclone separator, refrigeration machine, heat pump, Rankine cycle system and low-temperature flue gas processing
System；
The Cryogenic air outlet of aerial cooler is connected with the air inlet of compressor, the gas outlet of compressor respectively with combustion chamber
Air intlet is connected with the air inlet of compressed air cylinder, and the wind-force for providing power is provided with the power intake of compressor
Machine, the carbon monoxide and hydrogen outlet of coal gasifier are connected with the fuel inlet of combustion chamber, the high-temperature flue gas outlet of combustion chamber
It is connected with the air inlet of gas turbine, the clutch end of gas turbine is connected with generator, and the high-temperature flue gas of gas turbine goes out
Mouth is connected with the high-temperature flue gas air inlet of waste heat boiler；
The steam (vapor) outlet of waste heat boiler is connected with the air inlet of high pressure cylinder, equipped with stretching into and waste heat boiler on the gas outlet of high pressure cylinder
Interior reheat vapor cycle pipeline, the outlet side of reheat vapor cycle pipeline are connected with the air inlet of intermediate pressure cylinder, the gas outlet of intermediate pressure cylinder with it is low
The air inlet of cylinder pressure is connected, and forms the multistage steam acting power output structure with circulation reheat function；
The gas outlet of low pressure (LP) cylinder is connected with the air inlet of condenser, low-pressure heater that the liquid outlet of condenser is concatenated, deoxygenation
Device and high-pressure heater are connected with the inlet of waste heat boiler, form heated water re-circulation's structure of steam；
Steam outlet port is provided with intermediate pressure cylinder, steam outlet port is divided into two-way equipped with overheat extraction line, overheat extraction line,
The overheat gas outlet of extraction line wherein all the way is connected with the air inlet of combustion chamber, the overheat extraction line difference of another way
It is connected after through the vaporization chamber of refrigeration machine and heat pump with hot-water heater, forms the first of refrigeration machine, heat pump and hot-water heater
Auxiliary thermal source provides structure, overheats the 4th valve being provided with extraction line for controlling overheat extraction flow；
The steam (vapor) outlet of hot-water heater is connected with the air inlet of condenser, forms low temperature and low pressure steam recycling structure；
The exhanst gas outlet of waste heat boiler is connected with the air inlet mouth of SCR reactors, the gas outlet of SCR reactors and cyclone separator
Air inlet be connected, be connected with the circulating chilled water pipeline for stretching into air cooling machine on the liquid outlet of cyclone separator, form air
The auxiliary temperature-reducing structure of cooler；
The exhanst gas outlet of cyclone separator is connected with the import of threeway；
Medium temperature off-gas recovery pipeline is housed, medium temperature off-gas recovery pipeline passes through Rankine cycle system on first gas outlet of threeway
Organic working medium heater heating chamber after be connected with low-temperature flue gas processing system air inlet, threeway and organic working medium heater it
Between the first medium temperature off-gas recovery pipeline on be provided with the 5th valve for controlling flow；
Second gas outlet of threeway is connected with the air inlet of low-pressure heater, forms the feedwater heating arrangement of waste heat boiler；This
In waste heat boiler feedwater refer to from condenser steam condensation after out water, utilize cyclone separator come out medium temperature
Flue gas heats to the feedwater, completes waste heat boiler watering cycle, takes full advantage of waste heat；
Medium temperature flue gas pipeline is housed on the 3rd gas outlet of threeway, medium temperature flue gas pipeline be each passed through refrigeration machine and
It is connected after the vaporization chamber of heat pump with hot-water heater, the second auxiliary thermal source for forming refrigeration machine, heat pump and hot-water heater provides
Structure,
The gas outlet of the medium temperature flue gas pipeline being connected with hot-water heater and overheat extraction line respectively with low-temperature flue gas
The air inlet of reason system is connected；
The first valve is provided between compressor and compressed air cylinder；
The second valve is provided between coal gasifier and combustion chamber.
2. according to claim 1 integrate efficient, economize on water, the controllable co-generation system of gas turbine four, its feature exists
In described cyclone separator is supersonic cyclone separator, and it includes rotational flow generator (1), the Lavalle spray being sequentially connected
(3), liquid separation section (4) and outlet pipeline section (6) are managed, is provided with rotational flow generator (1) tangential into flue gas generation for making
The swirl vane (2) of eddy flow, liquid outlet (5) is provided with liquid separation section (4), the import of circulating chilled water pipeline separates with liquid
The liquid outlet (5) of section (4) is connected, and is provided with outlet pipeline section (6) and hinders whirlpool blade (7) outlet pipeline section for the rectification of rectification
(6) outlet is connected with the import of threeway.
3. according to claim 1 integrate efficient, economize on water, the controllable co-generation system of gas turbine four, its feature exists
In described Rankine cycle system includes organic working medium heater, steam turbine, generator or driving cycle pump, condenser and liter
Press pump, the outlet side of machine working medium heater are connected with the inlet end of steam turbine, clutch end and generator or the drive of steam turbine
The power intake of dynamic circulating pump is connected, and the outlet side of steam turbine is connected with the inlet end of condenser, the outlet end of condenser with
The liquid feeding end of booster is connected, and the outlet end of booster is connected with the liquid feeding end of machine working medium heater, forms steam circulation power
Export structure.
4. according to claim 1 integrate efficient, economize on water, the controllable co-generation system of gas turbine four, its feature exists
In described low-temperature flue gas processing system includes calcium oxide stove, calcining furnace and the separator for separating oxygen and nitrogen, with heat
The gas outlet of the connected medium temperature flue gas pipeline of water heater and overheat the extraction line air inlet phase with calcium oxide stove respectively
Even, the calcium carbonate outlet of calcium oxide stove is connected with the import of calcining furnace, the gas outlet of calcium oxide stove and the air inlet phase of separator
Even, fume treatment structure is formed.
5. according to claim 4 integrate efficient, economize on water, the controllable co-generation system of gas turbine four, its feature exists
In the oxygen discharge of described separator is connected with the air inlet of combustion chamber, forms oxygen recovery and utilizes structure.
6. according to claim 1 integrate efficient, economize on water, the controllable co-generation system of gas turbine four, its feature exists
Also include solar panels and solar thermal collector in, the described co-generation system of gas turbine four, the output end of solar panels with too
Positive energy heat collector is connected, and forms the auxiliary feedwater heating arrangement of waste heat boiler.
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| CN201720805118.0U CN206889110U (en) | 2017-07-05 | 2017-07-05 | It is a kind of to integrate efficient, economize on water, the controllable co-generation system of gas turbine four |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758040A (en) * | 2021-07-05 | 2021-12-07 | 中国科学院理化技术研究所 | Supersonic cyclone two-phase expansion CO2Trapping, utilizing and sealing system |
| CN115014000A (en) * | 2022-06-10 | 2022-09-06 | 国网浙江省电力有限公司电力科学研究院 | Multi-energy combined supply zero-carbon emission system and operation control method thereof |
-
2017
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758040A (en) * | 2021-07-05 | 2021-12-07 | 中国科学院理化技术研究所 | Supersonic cyclone two-phase expansion CO2Trapping, utilizing and sealing system |
| CN113758040B (en) * | 2021-07-05 | 2022-10-28 | 中国科学院理化技术研究所 | Supersonic cyclone two-phase expansion CO 2 Trapping, utilizing and sealing system |
| CN115014000A (en) * | 2022-06-10 | 2022-09-06 | 国网浙江省电力有限公司电力科学研究院 | Multi-energy combined supply zero-carbon emission system and operation control method thereof |
| CN115014000B (en) * | 2022-06-10 | 2023-12-26 | 国网浙江省电力有限公司电力科学研究院 | Multi-energy combined supply zero-carbon emission system and operation control method thereof |
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