CN208237839U - A kind of combustion gas turbine lack of gas and tandem heat recovery system - Google Patents
A kind of combustion gas turbine lack of gas and tandem heat recovery system Download PDFInfo
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- CN208237839U CN208237839U CN201820699154.8U CN201820699154U CN208237839U CN 208237839 U CN208237839 U CN 208237839U CN 201820699154 U CN201820699154 U CN 201820699154U CN 208237839 U CN208237839 U CN 208237839U
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- gas
- lack
- heat recovery
- combustion
- gas turbine
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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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a kind of combustion gas turbine lack of gas and tandem heat recovery systems, including gas turbine, lack of gas a part that the gas turbine generates is used as combustion adjuvant by the combustion system that lack of gas channel I enters stove, another part lack of gas enter heat recovery unit by lack of gas channel II, form the heat recovery system of combustion gas turbine lack of gas and grade formula.The utility model is primarily directed to the high temperature of lack of gas and containing oxygen characteristic, the lack of gas parallel connection that gas turbine is generated enters two heat recovery systems, to take full advantage of the sensible heat and combustion-supporting oxygen-enriched air of high temperature lack of gas, improve the thermal efficiency of reburner, heating furnace, hot-blast stove etc., the consumption for reducing its fuel, reduces flue gas emission, at the same can the heat to high temperature lack of gas adequately recycled, lack of gas exhaust temperature is reduced, the double effects of energy conservation with environmental protection are reached.
Description
Technical field
The utility model belongs to electric power or chemical technology field, in particular to a kind of combustion that can be applied to power plant or chemical plant
Gas turbine lack of gas and tandem heat recovery system.
Background technique
In power plant or chemical plant, combustion gas turbine driven generator or process unit compressor, combustion gas turbine are usually used
The lack of gas of discharge are high temperature oxygen-containing gas, how to make full use of the oxygen in the heat and lack of gas of lack of gas, the energy conservation for device
Emission reduction will be played the role of vital.
In common industrial application, lack of gas are only used to preheat other cryogenic gas by some, do not make full use of high temperature
Lack of gas contain oxygen characteristic；And some is used only as the combustion air of the burners such as reburner/heating furnace/hot-blast stove, in actual operation
Often there is the unmatched problem of heat, it is especially larger (such as in the fuel gas fluctuation of combustion gas turbine or fuel gas composition transfer
Inertia composition increases) in the case where, the lack of gas tolerance and temperature difference that combustion gas turbine gives off are larger, cause device discharge extra
High temperature lack of gas, cause plant energy consumption higher.
Utility model content
The goal of the invention of the utility model is: in view of the above problems, providing one kind can make full use of lack of gas
High temperature and combustion gas turbine lack of gas containing oxygen characteristic and tandem heat recovery system.
The technical solution of the utility model is achieved in that a kind of combustion gas turbine lack of gas and tandem heat recovery system,
Including gas turbine, it is characterised in that: lack of gas a part that the gas turbine generates enters the combustion of stove by lack of gas channel I
Burning system is used as combustion adjuvant, and another part lack of gas enter heat recovery unit by lack of gas channel II, forms combustion gas turbine lack of gas
And the heat recovery system of grade formula.
Combustion gas turbine lack of gas described in the utility model and tandem heat recovery system, in the heat recovery unit
It is provided with dish valve on lack of gas discharge flue, by the aperture of the dish valve, to control to adjust into lack of gas channel I and lack of gas channel
II weary tolerance.
Combustion gas turbine lack of gas described in the utility model and tandem heat recovery system, the heat recovery unit include
At least one level heat recovery mechanism, when the heat recovery unit is provided with multistage heat recovering mechanism, the multistage heat
The step heat recovery of recovering mechanism formation Cascade.
Combustion gas turbine lack of gas described in the utility model and tandem heat recovery system, the heat recovery unit include
Lack of gas are given up pot, exhaust boiler feed water preheater and lack of gas drum, and the lack of gas that the gas turbine generates pass through lack of gas channel II
Connect with the lack of gas pot that gives up, the lack of gas pot that gives up is connected with exhaust boiler feed water preheater, by lack of gas give up pot lack of gas into weary
The water outlet of gas boiler feed water preheater, the exhaust boiler feed water preheater is connect with lack of gas drum, and the lack of gas drum is logical
It crosses boiler feedwater circulating pump to connect with the useless pot of lack of gas, the boiler water of the useless pot vaporization of the lack of gas enters lack of gas drum, separate vapour
Furnace water afterwards is provided with liquid level instruction adjusting on the lack of gas drum and pressure refers to by boiler feedwater circulating pump forced circulation
Show adjusting, be provided with Liquid level adjusting valve on boiler feedwater pipeline, is arranged on the process steam general pipeline being connect with lack of gas drum
There is pressure-regulating valve.
Combustion gas turbine lack of gas described in the utility model and tandem heat recovery system, in the lack of gas drum and pressure
Flow instruction is provided on the pipeline of regulating valve connection.
Combustion gas turbine lack of gas described in the utility model and tandem heat recovery system, in the heat recovery unit
Temperature instruction is provided on lack of gas discharge flue to adjust.
Primarily directed to the high temperature of lack of gas and containing oxygen characteristic, the lack of gas parallel connection that gas turbine is generated enters the utility model
Two heat recovery systems improve reburner, heating to take full advantage of the sensible heat and combustion-supporting oxygen-enriched air of high temperature lack of gas
The thermal efficiency of furnace, hot-blast stove etc. reduces the consumption of its fuel, reduces flue gas emission, while can be to the heat of high temperature lack of gas
Amount is adequately recycled, and reduces lack of gas exhaust temperature, and guarantee under the different fuel gas operating condition of combustion engine, can control discharge
Exhausted temperature, reach energy conservation with environmental protection double effects.
Detailed description of the invention
Fig. 1 is the flow diagram of the utility model.
Marked in the figure: 1 is gas turbine, 2 be lack of gas channel I, and 3 be stove, and 4 be lack of gas channel II, and 5 give up pot for lack of gas, 6
It is lack of gas drum for exhaust boiler feed water preheater, 7,8 be boiler feedwater circulating pump, and 9 are adjusted for liquid level instruction, and 10 be liquid level tune
Valve is saved, 11 are adjusted for pressure instruction, and 12 be pressure-regulating valve, and 13 indicate for flow, and 14 are adjusted for temperature instruction, and 15 be butterfly valve.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, a kind of combustion gas turbine lack of gas and tandem heat recovery system, including gas turbine 1, the combustion gas wheel
Lack of gas a part that machine 1 generates is used as the combustion adjuvant of combustion air by the combustion system that lack of gas channel I 2 enters stove 3, described
Stove is reburner, heating furnace, hot-blast stove etc., and another part lack of gas enter heat recovery unit by lack of gas channel II 4, is formed
The heat recovery system of combustion gas turbine lack of gas and grade formula.
Wherein, it is provided with dish valve 15 on the lack of gas discharge flue of the heat recovery unit, passes through the dish valve 15
Aperture, to control to adjust the weary tolerance into lack of gas channel I 2 and lack of gas channel II 4, the heat recovery unit includes at least one
Grade heat recovery mechanism, when the heat recovery unit is provided with multistage heat recovering mechanism, the multistage heat recycling machine
It is configured to the step heat recovery of Cascade.
In the present embodiment, the heat recovery unit includes that lack of gas are given up pot 5, exhaust boiler feed water preheater 6 and weary
Gas drum 7, the lack of gas that the gas turbine 1 generates are connect by lack of gas channel II 4 with the useless pot 5 of lack of gas, and it is useless that lack of gas enter lack of gas
It is pressed in pot by-product or low-pressure steam, the lack of gas pot 5 that gives up is connected with exhaust boiler feed water preheater 6, is given up the weary of pot 5 by lack of gas
Gas enters exhaust boiler feed water preheater 6, and the water outlet of the exhaust boiler feed water preheater 6 is connect with lack of gas drum 7, described
Lack of gas drum 7 is connect by boiler feedwater circulating pump 8 with the useless pot 5 of lack of gas, and the boiler water that the useless pot 5 of the lack of gas vaporizes enters lack of gas
Drum 7, the furnace water after separate vapour are recycled by boiler feedwater circulating pump Final 8's system, are provided with liquid level on the lack of gas drum 7
Instruction adjusts 9 and pressure instruction adjusting 11, and Liquid level adjusting valve 10 is provided on boiler feedwater pipeline, connects with lack of gas drum 7
Pressure-regulating valve 12 is provided on the process steam general pipeline connect, the steam of lack of gas drum goes work after excess pressure is adjusted and is measured
Skill main steam range is provided with flow instruction 13, in the heat on the pipeline that the lack of gas drum 7 is connect with pressure-regulating valve 12
Temperature instruction is provided on the lack of gas discharge flue of amount recovery unit and adjusts 14, and lack of gas exhaust temperature is steamed by lack of gas drum
Pressure controls.
The working principle of the utility model is:
Lack of gas a part from gas turbine send reburner/heating furnace/hot-blast stove combustion system through lack of gas channel I,
Combustion adjuvant as stove, a part of lack of gas enter lack of gas by lack of gas channel II and give up pot, lack of gas give up pressed in by-product in pot or
Low-pressure steam, further the lack of gas after cooling enter back into exhaust boiler feed water preheater preboiler water supply, it is preheated after pot
Furnace water supply enters lack of gas drum, and the boiler feedwater in lack of gas drum enters the useless pot of lack of gas, portion after boiler water circulating pump pressurizes
Boiler water after dividing vaporization enters lack of gas drum, and the furnace water after separate vapour passes through boiler water circulating pump forced circulation.Lack of gas vapour
The liquid level of packet adjusted by the liquid level instruction of setting on their device and the Liquid level adjusting valve that is arranged on boiler feedwater pipeline into
Row control.The steam of lack of gas drum by-product by flow gauge (FG) amount, and by pressure-regulating valve progress pressure adjusting after, send to
Process steam general pipeline in device.
As needed, it can be indicated by flow, liquid level instruction is adjusted and the three impulses of Liquid level adjusting valve realization lack of gas drum
It adjusts.It is weary in the case where the fuel gas of gas turbine is by fluctuation or has formed large change (such as inert gas content increase)
Gas exhaust temperature can by exhausted temperature indicate adjust and lack of gas drum outlet line on pressure-regulating valve serials control into
The a degree of adjusting of row.It is adjusted into the weary tolerance in lack of gas channel I and lack of gas channel II by butterfly valve.
The utility model is first in parallel into two heat recovery systems by the lack of gas of discharge of gas turbine, and one is conversion
The combustion systems such as furnace/heating furnace/hot-blast stove, to improve reburner/heating furnace/hot-blast stove furnace efficiency, the other is weary
Gas gives up pot and exhaust boiler feed water preheater tandem heat recovery system, gas turbine fuel gas by fluctuation or formed compared with
In the case where big variation, it can guarantee lack of gas high temperature and making full use of containing oxygen characteristic by regulating butterfly valve, finally reduce lack of gas
Exhaust temperature reaches the double effects of energy conservation with environmental protection.The process flow of the utility model is especially suitable for being configured with combustion gas wheel
The power plant of machine or chemical plant relevant apparatus.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (6)
1. a kind of combustion gas turbine lack of gas and tandem heat recovery system, including gas turbine (1), it is characterised in that: the combustion gas
Lack of gas a part that turbine (1) generates is used as combustion adjuvant, another portion by the combustion system that lack of gas channel I (2) enters stove (3)
Divide lack of gas to enter heat recovery unit by lack of gas channel II (4), forms the heat recovery system of combustion gas turbine lack of gas and grade formula.
2. combustion gas turbine lack of gas according to claim 1 and tandem heat recovery system, it is characterised in that: in the heat
Dish valve (15) are provided on the lack of gas discharge flue of recovery unit, by the aperture of the dish valve (15), to control to adjust entrance
The weary tolerance in lack of gas channel I (2) and lack of gas channel II (4).
3. combustion gas turbine lack of gas according to claim 2 and tandem heat recovery system, it is characterised in that: the heat returns
Receiving unit includes at least one level heat recovery mechanism, when the heat recovery unit is provided with multistage heat recovering mechanism, institute
State the step heat recovery that multistage heat recovering mechanism forms Cascade.
4. combustion gas turbine lack of gas according to claim 1,2 or 3 and tandem heat recovery system, it is characterised in that: described
Heat recovery unit includes lack of gas useless pot (5), exhaust boiler feed water preheater (6) and lack of gas drum (7), the gas turbine
(1) lack of gas generated by lack of gas channel II (4) and lack of gas give up pot (5) connect, the lack of gas are given up pot (5) and exhaust boiler water supply
Preheater (6) series connection enters exhaust boiler feed water preheater (6), the exhaust boiler water supply by the give up lack of gas of pot (5) of lack of gas
The water outlet of preheater (6) is connect with lack of gas drum (7), and the lack of gas drum (7) passes through boiler feedwater circulating pump (8) and lack of gas
Useless pot (5) connection, the lack of gas boiler water that pot (5) vaporize that give up enter lack of gas drum (7), and the furnace water after separate vapour passes through pot
Furnace watering cycle pumps (8) forced circulation, and liquid level instruction is provided on the lack of gas drum (7) and adjusts (9) and pressure instruction tune
It saves (11), Liquid level adjusting valve (10) is provided on boiler feedwater pipeline, in the process steam general pipeline connecting with lack of gas drum (7)
On be provided with pressure-regulating valve (12).
5. combustion gas turbine lack of gas according to claim 4 and tandem heat recovery system, it is characterised in that: in the lack of gas
Flow instruction (13) is provided on the pipeline that drum (7) is connect with pressure-regulating valve (12).
6. combustion gas turbine lack of gas according to claim 4 and tandem heat recovery system, it is characterised in that: in the heat
Temperature instruction, which is provided with, on the lack of gas discharge flue of recovery unit adjusts (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820699154.8U CN208237839U (en) | 2018-05-11 | 2018-05-11 | A kind of combustion gas turbine lack of gas and tandem heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820699154.8U CN208237839U (en) | 2018-05-11 | 2018-05-11 | A kind of combustion gas turbine lack of gas and tandem heat recovery system |
Publications (1)
| Publication Number | Publication Date |
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| CN208237839U true CN208237839U (en) | 2018-12-14 |
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| CN201820699154.8U Active CN208237839U (en) | 2018-05-11 | 2018-05-11 | A kind of combustion gas turbine lack of gas and tandem heat recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679587A (en) * | 2018-05-11 | 2018-10-19 | 中国成达工程有限公司 | A kind of combustion gas turbine lack of gas and tandem heat recovery system |
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2018
- 2018-05-11 CN CN201820699154.8U patent/CN208237839U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679587A (en) * | 2018-05-11 | 2018-10-19 | 中国成达工程有限公司 | A kind of combustion gas turbine lack of gas and tandem heat recovery system |
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