CN206942820U - A kind of equipment to be generated electricity using combustion gas and Steam Combined - Google Patents
A kind of equipment to be generated electricity using combustion gas and Steam Combined Download PDFInfo
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- CN206942820U CN206942820U CN201720562353.XU CN201720562353U CN206942820U CN 206942820 U CN206942820 U CN 206942820U CN 201720562353 U CN201720562353 U CN 201720562353U CN 206942820 U CN206942820 U CN 206942820U
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Abstract
The utility model discloses a kind of equipment to be generated electricity using combustion gas and Steam Combined, and this kind is using coal production clean fuel and improves the utilization ratio of energy while can effectively control the equipment to be generated electricity using combustion gas and Steam Combined of pollutant to include：Air separation unit, gasification installation, heat reclamation device, purifier, expansion power generation device and Gas/Steam combined power generation device, the Gas/Steam combined power generation device include：Gas turbine power generating unit, waste heat boiler unit and steam turbine generator unit；The waste heat boiler unit reclaims the heat of the high-temperature gas to produce high-pressure saturated steam, and the high-pressure saturated steam is produced as into high pressure superheated steam together with the high-pressure saturated steam from gasification furnace unit；The steam turbine generator unit is generated electricity using the high pressure superheated steam.The utility model solves the problems, such as tails dedusting, desulfurization and denitration existing for traditional coal-burning boiler from source, reduces harmful substance in emission.
Description
Technical field
A kind of generating equipment is the utility model is related to, is joined specifically, the utility model is related to one kind using combustion gas and steam
Close the equipment to generate electricity.
Background technology
The basic characteristics of China's energy resources are rich coal, oil-poor, few gas, by coal resources in China and oil, natural gas and water
It can be compared with the disposable energy resources such as nuclear energy, coal accounts for more than the 85% of whole disposable energy resources.Therefore, the energy in China
Source consumption structure is the feelings with American-European countries's " based on oil, supplemented by coal, natural gas, water power, nuclear energy are supplement " based on coal
Condition gap is notable.2016, accounting was still above 60% in Chinese disposable energy consumption structure for raw coal, considerably long in the period of
Interior, the disposable energy supply of China will be based on coal.
With China's industrialization and the deep propulsion of Development of China's Urbanization, fossil energy utilizes and resource consumption continues to increase,
Regional air combined pollution continues to aggravate, and the multiple regional haze events in the whole nation take place frequently.The main composition of atmosphere pollution is two
Sulfur oxide, nitrogen oxides and cigarette (powder) dirt, and national cigarette (powder) dirt discharge 70%, the 85% of sulfur dioxide (SO2) emissions, nitrogen oxidation
The 67% of thing discharge all originates from the burning of the fossil energy based on coal.Although benefiting from China's industrial waste gas administers policy,
Downward trend is presented in sulfur dioxide, nitrogen oxides, the discharge of cigarette (powder) dirt in recent years, but overall discharge radix is still high,
And the fossil-fired unit of Mei electricity enterprises is one of main source of pollutant emission.
2016 revised《The Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution》It is formal to implement, highlighted from policy aspect
The legislation thinking that control atmosphere pollution is effected a permanent cure from trend of taking stopgap measures.For the industrial smoke emission control of coal fired power generation link, environmental protection
Issue in portion《Implement in full coal-burning power plant's minimum discharge and reducing energy consumption programme of work》, during explicitly pointing out China " 13 "
More strict " minimum discharge " standard will be performed, nitrogen oxides, sulfur dioxide, cigarette (powder) dirt discharge standard are further reduced to
50mg/m3、35mg/m3And 10mg/m3。
However, the mode of traditional coal unit power supply, there is that energy efficiency is low, water consume is high, to meet environment protection emission requirement
Invest a series of problem such as huge.Therefore, how a kind of efficient green coal power technology is provided, will be the master of solution energy problem
Want approach.
The information for being disclosed in the utility model background section is merely intended to deepen to general background of the present utility model
The understanding of technology, and be not construed as recognizing or imply the information structure in any form by those skilled in the art public affairs
The prior art known.
Utility model content
The purpose of this utility model be to provide it is a kind of using coal production clean fuel and improve energy using imitating
Rate while the equipment to be generated electricity using combustion gas and Steam Combined that can effectively control pollutant.
The utility model provides a kind of equipment to be generated electricity using combustion gas and Steam Combined, and it includes：Air separation unit, gasification dress
Put, heat reclamation device, purifier, expansion power generation device and Gas/Steam combined power generation device；
The air separation unit is configured to, and produces oxygen and nitrogen and caused oxygen and nitrogen are delivered into the gasification
Device；
The gasification installation is configured to include：Mill coal drying unit, pressurized delivered unit, gasification furnace unit and washing are single
Member；Raw coal is ground in the mill coal drying unit and is transported to the pressurized delivered unit after drying, and the pressurization is defeated
Send unit that coal dust is pressurizeed and be delivered to gasification furnace unit；Coal dust is with the oxygen from air separation unit in the gasification furnace list
Gasification reaction occurs in member to produce high-temperature gas mixture, the high-temperature gas mixture carries out heat with the HP boiler water in gasification furnace unit
Washing wetting is carried out by the washing unit after exchanging, to form raw gas, and the raw gas is delivered to the heat
Retracting device；High-pressure saturated steam is formed by gasifying by the HP boiler water of heat exchange, the high-pressure saturated steam is defeated
Deliver to the Gas/Steam combined power generation device；
The heat reclamation device is configured to, and is by the heat recovery in raw gas and by the organic sulfur conversion in raw gas
Inorganic sulfur, and the clean gas in the purifier is heated and is delivered to the clean gas of heating described swollen
Swollen TRT；
The purifier is configured to, and removes the sulfide in raw gas to form clean gas, and by clean gas
It is delivered to the heat reclamation device；
The expansion power generation device is configured to, and clean gas is expanded to be generated electricity, and will meet combustion gas/steaming
The clean gas of the inlet pressure of vapour combined power generation device is delivered to Gas/Steam combined power generation device；
The Gas/Steam combined power generation device is configured to include：Gas turbine power generating unit, waste heat boiler unit and steaming
Steam turbine power generation unit, the gas turbine power generating unit is burnt clean gas to be generated electricity, and produces high temperature
Gas；The waste heat boiler unit reclaims the high-temperature gas to produce high-pressure saturated steam, and by the high-pressure saturated steam with
High-pressure saturated steam from the gasification furnace unit is produced as high pressure superheated steam together, to produce high pressure superheated steam；Institute
Steam turbine generator unit is stated using the high pressure superheated steam to be generated electricity.
Preferably, the equipment also includes：Sulfur recovery unit, the sulfur recovery unit are configured to, and recovery fills from the purification
The sour gas put, and be sulphur product by the Sour gas disposal.
Preferably, the gasification furnace unit includes：Gasification furnace conversion zone, gasification furnace radiation heat transfer section and gasification furnace convection current are changed
Hot arc；
With the oxygen from air separation unit in the gasification furnace conversion zone gasification reaction occurs for the coal dust；The high temperature mixes
Close gas and carry out heat exchange by gasification furnace radiation heat transfer section and gasification furnace heat convection section successively.
It is highly preferred that gas-solid separator is provided between the gasification furnace radiation heat transfer section and gasification furnace heat convection section,
The gas-solid separator is used to be removed the solid particulate matter in gaseous mixture.
It is highly preferred that the gasification furnace conversion zone, gasification furnace radiation heat transfer section, gas-solid separator and gasification furnace heat convection
The inwall of section is provided with fin panel casing.
Preferably, connected in the waste heat boiler unit via flue with the mill coal drying unit, by part
Denitration flue gas is delivered to the mill coal drying unit, so as to be heated and be dried for raw coal.
Preferably, the purifier includes syngas outlet, and a part of clean gas is discharged.
Preferably, hydrolytic tank is provided with the heat reclamation device, for being by the organic sulfur conversion in the raw gas
Inorganic sulfur.
Preferably, the raw coal is bituminous coal, anthracite or lignite；Reaction temperature in the gasification furnace unit is：
1200 to 1700 DEG C, reaction pressure is：4 to 10MP.
The utility model further relates to a kind of method to be generated electricity using combustion gas and Steam Combined, and it comprises the following steps：
A) oxygen and nitrogen are produced using air separation unit, and caused oxygen and nitrogen is delivered to gasification installation；
B) gasification installation is delivered to after raw coal is ground, dry and pressurize；
C) gasification reaction will occur in coal dust and gasification furnace unit of the oxygen in gasification installation, to produce high temperature mixing
Gas；
D) HP boiler water in high-temperature gas mixture and gasification furnace unit is carried out carrying out washing wetting after heat exchange, with
Form raw gas；
E) HP boiler water will be gasified and the high-pressure saturated steam that is formed is delivered to Gas/Steam combined power generation device；
F) using heat reclamation device by the heat recovery in raw gas and by the organic sulfur conversion in raw gas to be inorganic
Clean gas in sulphur, and future self-purifying device heats and the clean gas of heating is delivered into expansion power generation device；
G) sulfide in raw gas is removed using purifier, to form clean gas, and clean gas is defeated
Deliver to heat reclamation device；
H) clean gas is expanded to be generated electricity using expansion power generation device, and will meets that Gas/Steam joins
The clean gas for closing the inlet pressure of TRT is delivered to the Gas/Steam combined power generation device；
I) clean gas is burnt to enter using the gas turbine power generating unit in Gas/Steam combined power generation device
Row generates electricity, and produces high-temperature gas；
J) utilize the waste heat boiler unit in Gas/Steam combined power generation device to reclaim the high-temperature gas to produce high pressure to satisfy
And steam, and the high-pressure saturated steam is produced as height together with the high-pressure saturated steam from the gasification furnace unit and pressed through
Vapours；
K) the steam turbine generator unit in Gas/Steam combined power generation device is utilized, by using high pressure superheated steam
To be generated electricity.
The utility model takes above technical scheme, and it has following beneficial effect：
(1) the utility model employs is converted into raw gas, by purifying pollutant, the cleanings such as removing sulphur by Coal Gasification
Coal gas send the overall process route of gas turbine and Steam Combined Cycle combustion power generation.In the utility model, gas turbine fuel is
Cleaning coal gas after purification, solve the problems, such as tails dedusting, desulfurization and denitration existing for traditional coal-burning boiler from source, arrange
The concentration of emission of harmful substance in tail gas is put far below discharging standards requirement.
(2) in the utility model, gasification furnace is provided with radioreaction section, gas-solid separator, convection current conversion zone, can be abundant
The sensible heat in gasification reaction high-temperature gas mixture is reclaimed, produces high-pressure saturated steam, effectively increases the utilization ratio of energy.Together
When, efficient gas-solid separator can will carry most of solids removal secretly in gas, solve given up to the convection current abrasion of pot of bulky grain and ask
Topic, while the solids content in gaseous mixture is reduced, it ensure that the reliability and stability of each plant running.
(3) in the utility model recuperation of heat setting, further reclaim raw gas in heat while, by clean gas
Temperature be increased to 150 DEG C；Expansion power generation device recovery section pressure energy, and clean gas pressure is met gas turbine inlet
Pressure requirements, add the overall generating capacity of system.Heat reclamation device and expansion power generation device, system hypothermia position heat energy is entered
Recycling is gone, preliminary recovery has been carried out to pressure energy, has improved the energy utilization efficiency of system.
(4) in the utility model, gasification furnace fully reclaims the heat in pyroreaction gas, adds System steam total yield
Amount, improve the generated energy of steam turbine.
(5) in the utility model, by the use of waste heat boiler partial denitrification flue gas as thermal source, instead of the mill coal drying unit that gasifies
Hot-blast stove, save equipment investment and fuel consumption, while improve energy utilization efficiency.
(6) the utility model process route is simple, each device technique is ripe, and energy-conserving and environment-protective, application risk are small, and satisfaction is advocated
The green coal-fired power developing direction requirement led, the beneficial choice of technology is provided to substitute traditional Thermal generation unit.
Brief description of the drawings
Exemplary embodiment of the present utility model is described in more detail below in conjunction with accompanying drawing.Risen to be clear
See, identical part is shown with identical label in different accompanying drawings.It should be noted that accompanying drawing only plays signal effect, it is not
Draw necessarily to scale.In the accompanying drawings：
Fig. 1 is the structured flowchart of the equipment to be generated electricity using combustion gas and Steam Combined in the utility model；
Fig. 2 is the structured flowchart of the gasification installation in the utility model；
Fig. 3 is the flow chart of the method to be generated electricity using combustion gas and Steam Combined in the utility model.
Embodiment
Exemplary embodiment of the present utility model is described in detail below with reference to appended accompanying drawing.
With reference to shown in Fig. 1 and Fig. 2, a kind of equipment to be generated electricity using combustion gas and Steam Combined in the utility model, it is wrapped
Include：Air separation unit 1, gasification installation 2, heat reclamation device 3, purifier 4, expansion power generation device 5, Gas/Steam cogeneration
Device 6 and sulfur recovery unit 7.Here, except as otherwise specified otherwise, gas or liquid between each device are given tacit consent to via pipeline
Conveyed.
The air separation unit 1 is configured to, and produces oxygen and nitrogen and caused oxygen and nitrogen are delivered into the gas
Makeup puts 2.The air separation unit 1 is used to produce low-pressure nitrogen, high pressure nitrogen and pure oxygen, and the air separation unit 1 fills with gasification
Put 2 to connect by pipeline, its caused pure oxygen is delivered to gasification installation 2.
The gasification installation 2 is configured to include：Mill coal drying unit 21, pressurized delivered unit 22, the and of gasification furnace unit 23
Wash unit 24.Raw coal is ground in mill coal drying unit 21 and is transported to pressurized delivered unit 22 after drying, should
Coal dust is pressurizeed and is delivered to gasification furnace unit 23 by pressurized delivered unit 22.Coal dust is with the oxygen from air separation unit in institute
State and gasification reaction occurs in gasification furnace unit 23 to produce high-temperature gas mixture, the high-temperature gas mixture and the height in gasification furnace unit 23
Pressure boiler water carries out heat exchange and carries out washing wetting by the washing unit 24 afterwards, to form raw gas, and the rough coal
Gas is delivered to the heat reclamation device 3.High-pressure saturated steam is formed by gasifying by the HP boiler water of heat exchange, the height
Pressure saturated vapor is transported to the Gas/Steam combined power generation device 6.
As shown in Fig. 2 described gasification installation includes gasification furnace cell mesh and washing cell mesh, wherein gasification furnace list
Key equipment of the member as gasification installation, it is main to include four major parts, respectively conversion zone, radiation heat transfer section, gas-solid point
From device and heat convection section, fin panel casing is equipped with each several part inwall.
Using coal and oxygen as raw material, in gasification furnace conversion zone gasification reaction occurs for the gasification installation, and reaction temperature is
1200~1700 DEG C, reaction pressure is 4~10MPa (MPa).Kinds of coals for gasification range of choice is wide, and anthracite, bituminous coal lignite etc. are equal
It can be selected, be advantageous to enterprise according to the preferred coal source of own situation.
Gasification reaction occurs in week reduction atmosphere by controlling the addition of oxygen, coal and oxygen, effectively inhibits
The generation of nitrogen oxides, is generated with CO and H2For the high-temperature gas mixture of main component.Most of element sulphur is with sulfide in coal
(COS and H2S form) enters in gas, on a small quantity into solid (lime-ash).Sulfide in gas is taken off in purifier
Remove, and be further processed into high-purity sulfur product.Into the element sulphur in solid to stablize salt form presence, to environment
It is pollution-free.
The water-cooling wall of gasification furnace conversion zone, gasification furnace conversion zone not overtemperature is protected, while produce high-pressure saturated steam.Gasification
High-temperature gas mixture caused by reaction first passes around gasification furnace radiation heat transfer section, and the water high pressure saturation that produces of high-pressure boiler is steamed
Vapour, while gas temperature is reduced to about 600 DEG C.Gaseous mixture after first cooling is divided for the first time into efficient gas-solid separator
From about 80% solid particle is separated out from gaseous mixture.After gaseous mixture leaves efficient gas-solid separator, into gasification furnace convection current
Heat exchanging segment, continue the water generation high-pressure saturated steam of high-pressure boiler, at the same mixture temperature be reduced to about 350 DEG C after leave
Gasification furnace.The gaseous mixture gone out after gasification furnace, after fully wetting washing, the dust content in gas is down to 1mg/Nm3Hereinafter, make
Heat reclamation device is sent into for raw gas.
High-pressure saturated steam caused by gasification furnace delivers to Gas/Steam combined power generation device, is sent after waste heat boiler overheats
Steam turbine power generation.Preferably, the reaction pressure scope of gasification furnace is 4~10MPa, and gasification reaction temperature range is 1200~1700
℃.It is 10.0MPa that gasification furnace, which produces saturated vapour pressure,.170~200 DEG C of the temperature of raw gas.By gasification reaction, by coal
Chemical energy is converted into heat energy, by multi-stage heat exchanger, has fully reclaimed the high-temperature position heat energy in gaseous mixture, improves energy utilization effect
Rate.By efficient gas-solid separator, most of solids removal will be carried in gas secretly, solve bulky grain and convection current is given up the mill of pot
Erosion problem, while the dust content in gaseous mixture is reduced, it ensure that the useless pot reliability of operation of convection current and stability.
Further in conjunction with shown in Fig. 1 and Fig. 2, the heat reclamation device 3 is configured to, and by the heat recovery in raw gas and is incited somebody to action
Organic sulfur (such as COS) in raw gas is converted into inorganic sulfur (such as H2S), and will be clean in the purifier 4
Purified gas heats and the clean gas of heating is delivered into the expansion power generation device 5.Described heat reclamation device acts on
Low temperature position heat in raw gas is recycled, while the COS in raw gas is converted into H2S, to meet purifier
Ingredient requirement.The clean gas for carrying out raw gas auto purification in the future unit first of autopneumatolysis is preheated to about 150 DEG C, subsequently into
Organic sulfur COS micro in raw gas is converted into H by hydrolytic tank2S, HP boiler water, desalted water are preheated afterwards, it is maximum
Heat in the recovery raw gas of limit, is finally water-cooled to 60 DEG C with a small amount of circulating cooling and is delivered to purifier.
The purifier 4 is configured to, and removes the sulfide in raw gas and a part of carbon dioxide to form Filter Tuber For Clean Coal
Gas, and clean gas is delivered to the heat reclamation device 3.Due to the H in raw gas2Blade of the S components to gas turbine
With corrosiveness, therefore need to be removed.Purification can use the techniques such as low-temp methanol washing, remove the H in raw gas2S and
Part CO2, the overall sulfur content in clean gas is less than 1ppm (ppm).Carry out the sour gas of self-purifying device
(H2S、CO2) after sulfur recovery unit is handled, obtain high-purity sulfur product.By purification and sulfur recovery unit, by raw gas
H2S is converted into the sulfur product of high-purity, sulphur is not re-used as pollutant and enters air, is had while realizing emission reduction
There is the sulfur product of added value, realize good economic benefit.
The expansion power generation device 5 is configured to, and clean gas is expanded to be generated electricity, and will meet entrance pressure
The clean gas of power is delivered to the Gas/Steam combined power generation device 6.Clean gas after preheating fills into expansion power generation
Put, post-expansion gas pressure is met that gas turbine inlet allows pressure requirements (about 2.35MPa), while preliminary gas recovery
Pressure energy, the electric energy of production can meet part in-plant equipment power demand.
The Gas/Steam combined power generation device 6 is configured to include：Gas turbine power generating unit, waste heat boiler unit and
Steam turbine generator unit, the gas turbine power generating unit is burnt clean gas to be generated electricity, and produces height
Wet body.The waste heat boiler unit reclaims the high-temperature gas heat to produce high-pressure saturated steam, and then by the high pressure
Saturated vapor merges with the high-pressure saturated steam from the gasification furnace unit, afterwards using its internal heat exchange unit come
Produce high pressure superheated steam.The steam turbine generator unit is generated electricity using the high pressure superheated steam.In addition, the sulphur returns
Receiving apparatus 7 is configured to, and reclaims the sour gas from the purifier, and is sulphur product by the Sour gas disposal.
Described Gas/Steam combined power generation device includes gas turbine power generation and steam turbine and generated electricity two parts.It is clean
Coal gas enters gas-turbine combustion chamber, and burning produces high-temperature gas, and propelling gas turbine engine acting generates electricity；Gas turbine high temperature is vented
Heat is reclaimed through waste heat boiler, the saturated vapor overheat of high pressure superheated steam autopneumatolysis in future simultaneously is produced, promotes steamer jointly
Machine acting generates electricity.
In addition connected in the waste heat boiler unit via flue with the mill coal drying unit 21, part is de-
Smoke of gunpowder gas is delivered to the mill coal drying unit 21, so as to be heated for raw coal.By by the partial denitrification flue gas of waste heat boiler
Send gasification installation mill coal drying unit to be used as the thermal source for drying raw coal, hot-blast stove is instead of, without introducing volume in systems
Outer fuel, improve the utilization ratio of energy.The other purifier 4 also includes syngas outlet (not shown), by one
Part clean gas discharge.
The operation principle of the equipment of the present utility model to be generated electricity using combustion gas and Steam Combined is：Coal dust and from space division
Gasification reaction occurs in gasification furnace for oxygen, after caused high-temperature gas mixture has reclaimed high-temperature position heat energy in gasification furnace, through water
Elution removes the dust in coal gas, then after heat reclamation device reclaims low-temperature heat energy therein, the dirt such as purified device removing sulphur
Thing is contaminated, the clean gas after purification is tentatively generated electricity through expanding machine after being preheated, afterwards into gas turbine power generation, and utilized
Steam Actuation steam turbine power generation caused by waste heat boiler, while the sulfide recovery in raw gas is prepared into simple substance sulphur production
Product.
This technology can effectively solve the pollution problem of the dust, waste gas that are brought in typical coal-fired boiler power generation process, simultaneously
By the reasonable disposition to each unit energy, energy is made full use of, improves the economic benefit of device.
As shown in figure 3, the utility model further relates to a kind of method to be generated electricity using combustion gas and Steam Combined, its step：Profit
Oxygen and nitrogen are produced with air separation unit, and caused oxygen and nitrogen are delivered to gasification installation；Raw coal is ground,
Dry and pressurization is delivered to gasification installation afterwards；Gasified reverse will occur in coal dust and gasification furnace unit of the oxygen in gasification installation
Should, to produce high-temperature gas mixture；HP boiler water in high-temperature gas mixture and gasification furnace unit carried out after heat exchange
Washing wetting, to form raw gas；It will gasify HP boiler water and the high-pressure saturated steam that is formed is delivered to Gas/Steam joint
TRT；Using heat reclamation device by the heat recovery in raw gas and by the organic sulfur conversion in raw gas to be inorganic
Clean gas in sulphur, and future self-purifying device heats and the clean gas of heating is delivered into expansion power generation device；
The sulfide in raw gas is removed using purifier, to form clean gas, and clean gas is delivered to recuperation of heat
Device；Clean gas is expanded to be generated electricity using expansion power generation device, and the Filter Tuber For Clean Coal that inlet pressure will be met
Gas is delivered to the Gas/Steam combined power generation device；Utilize the gas turbine power generation list in Gas/Steam combined power generation device
Member is burnt clean gas to be generated electricity, and produces high-temperature gas；Using in Gas/Steam combined power generation device
Waste heat boiler unit reclaims the heat of the high-temperature gas to produce high-pressure saturated steam, and by the high-pressure saturated steam with coming from
The high-pressure saturated steam of the gasification furnace unit is produced as high pressure superheated steam together；Utilize Gas/Steam combined power generation device
In steam turbine generator unit utilize high pressure superheated steam to be generated electricity.
The description above presented to the specific illustrative embodiment of the utility model is in order at the purpose of illustration and description.
Description above is not intended to turn into milli exhaustively, is not intended to the utility model is limited to disclosed accurate shape
Formula, it is clear that much changed according to above-mentioned teaching and change is all possible.Selection illustrative embodiments and be described be for
Explanation certain principles of the present utility model and its practical application, so that others skilled in the art can be realized simultaneously
Utilize various illustrative embodiments of the present utility model and its various selection forms and modification.The scope of the utility model
It is intended to be limited by appended claims and its equivalents.
Claims (9)
- A kind of 1. equipment to be generated electricity using combustion gas and Steam Combined, it is characterised in that including：Air separation unit (1), gasification installation (2), heat reclamation device (3), purifier (4), expansion power generation device (5) and Gas/Steam combined power generation device (6)；The air separation unit (1) is configured to, and produces oxygen and nitrogen and caused oxygen and nitrogen are delivered into the gasification Device (2)；The gasification installation (2) is configured to include：Mill coal drying unit (21), pressurized delivered unit (22), gasification furnace unit (23) and washing unit (24)；Raw coal is ground in the mill coal drying unit (21) and described add is transported to after drying Supply unit (22) is pressed, coal dust is pressurizeed and is delivered to gasification furnace unit (23) by the pressurized delivered unit (22)；Coal dust with Gasification reaction occurs in the gasification furnace unit (23) for the oxygen from air separation unit to produce high-temperature gas mixture, and the high temperature mixes Gas is closed with being washed after the HP boiler water progress heat exchange in gasification furnace unit (23) by the washing unit (24) Wetting, to form raw gas, and is delivered to the heat reclamation device (3) by the raw gas；By the high pressure of heat exchange Boiler water to form high-pressure saturated steam by gasifying, and the high-pressure saturated steam is transported to the Gas/Steam combined power generation device (6)；The heat reclamation device (3) is configured to, and is by the heat recovery in raw gas and by the organic sulfur conversion in raw gas Inorganic sulfur, and the clean gas come from the purifier (4) is heated and the clean gas of heating is delivered to institute State expansion power generation device (5)；The purifier (4) is configured to, and removes the sulfide in raw gas to form clean gas, and clean gas is defeated Deliver to the heat reclamation device (3)；The expansion power generation device (5) is configured to, and clean gas is expanded to be generated electricity, and will meet combustion gas/steaming The clean gas of the inlet pressure of vapour combined power generation device (6) is delivered to Gas/Steam combined power generation device (6)；The Gas/Steam combined power generation device (6) is configured to include：Gas turbine power generating unit, waste heat boiler unit and steaming Steam turbine power generation unit, the gas turbine power generating unit is burnt clean gas to be generated electricity, and produces high temperature Gas；The waste heat boiler unit reclaims the heat of the high-temperature gas to produce high-pressure saturated steam, and by the high pressure saturation Steam is produced as high pressure superheated steam together with the high-pressure saturated steam from the gasification furnace unit；The steam turbine generates electricity Unit is generated electricity using the high pressure superheated steam.
- 2. the equipment according to claim 1 to be generated electricity using combustion gas and Steam Combined, it is characterised in that also include：Sulphur returns Receiving apparatus (7), the sulfur recovery unit (7) are configured to, and reclaim the sour gas from the purifier, and by the sour gas Body processing is sulphur product.
- 3. the equipment according to claim 1 to be generated electricity using combustion gas and Steam Combined, it is characterised in that：The gasification furnace list First (23) include：Gasification furnace conversion zone, gasification furnace radiation heat transfer section and gasification furnace heat convection section；With the oxygen from air separation unit in the gasification furnace conversion zone gasification reaction occurs for the coal dust；The high-temperature gas mixture Successively heat exchange is carried out by gasification furnace radiation heat transfer section and gasification furnace heat convection section.
- 4. the equipment according to claim 3 to be generated electricity using combustion gas and Steam Combined, it is characterised in that：In the gasification furnace Gas-solid separator is provided between radiation heat transfer section and gasification furnace heat convection section, the gas-solid separator is used for consolidating in gaseous mixture Body particulate matter is removed.
- 5. the equipment according to claim 4 to be generated electricity using combustion gas and Steam Combined, it is characterised in that：The gasification furnace is anti- The inwall of section, gasification furnace radiation heat transfer section, gas-solid separator and gasification furnace heat convection section is answered to be provided with fin panel casing.
- 6. the equipment according to claim 1 to be generated electricity using combustion gas and Steam Combined, it is characterised in that：The waste heat boiler Connected in unit via flue with the mill coal drying unit (21), partial denitrification flue gas is delivered to the mill coal drying Unit (21), so as to be heated and be dried for raw coal.
- 7. the equipment according to claim 1 to be generated electricity using combustion gas and Steam Combined, it is characterised in that：The purifier (4) include syngas outlet, a part of clean gas is discharged.
- 8. the equipment according to claim 1 to be generated electricity using combustion gas and Steam Combined, it is characterised in that：The recuperation of heat dress Put and hydrolytic tank is provided with (3), for being inorganic sulfur by the organic sulfur conversion in the raw gas.
- 9. the equipment according to claim 1 to be generated electricity using combustion gas and Steam Combined, it is characterised in that：The raw coal is cigarette Coal, anthracite or lignite；Reaction temperature in the gasification furnace unit (23) is：1200 to 1700 DEG C, reaction pressure is：4 To 10MP.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720562353.XU CN206942820U (en) | 2017-05-19 | 2017-05-19 | A kind of equipment to be generated electricity using combustion gas and Steam Combined |
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| CN201720562353.XU CN206942820U (en) | 2017-05-19 | 2017-05-19 | A kind of equipment to be generated electricity using combustion gas and Steam Combined |
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| CN206942820U true CN206942820U (en) | 2018-01-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165688A (en) * | 2017-05-19 | 2017-09-15 | 北京迈未科技有限公司 | The device and method that a kind of utilization combustion gas and Steam Combined generate electricity |
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2017
- 2017-05-19 CN CN201720562353.XU patent/CN206942820U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165688A (en) * | 2017-05-19 | 2017-09-15 | 北京迈未科技有限公司 | The device and method that a kind of utilization combustion gas and Steam Combined generate electricity |
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Address after: 101111 Beijing City, Daxing District branch of Beijing economic and Technological Development Zone, thirteen street, 18 Hospital No. 1 building 10 layer 1005 Patentee after: Beijing Aerospace Maiwei Technology Co., Ltd Address before: 101111 Beijing City, Daxing District branch of Beijing economic and Technological Development Zone, thirteen street, 18 Hospital No. 1 building 10 layer 1005 Patentee before: Beijing Maiwei Technology Co., Ltd. |