CN209483484U - Fume afterheat heat supply and inlet gas cooling, gas heating coupled system - Google Patents
Fume afterheat heat supply and inlet gas cooling, gas heating coupled system Download PDFInfo
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- CN209483484U CN209483484U CN201821674287.6U CN201821674287U CN209483484U CN 209483484 U CN209483484 U CN 209483484U CN 201821674287 U CN201821674287 U CN 201821674287U CN 209483484 U CN209483484 U CN 209483484U
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Abstract
The utility model relates to a kind of fume afterheat heat supplies and inlet gas cooling, gas heating coupled system, applied to 9F type combustion engine combined cycle unit, including gas turbine, waste heat boiler, combustion engine compressor inlet aerial cooler, flue gas heat-exchange unit, absorption heat pump, gas heater；Gas heater, combustion engine compressor inlet aerial cooler are connect with gas turbine, and gas turbine is connect with waste heat boiler；Combustion engine compressor inlet aerial cooler is connect by the first cooling water pipeline with absorption heat pump, and flue gas heat-exchange unit is connect by the second cooling water pipeline with absorption heat pump；Absorption heat pump is connect with unit circulation and heat network system；Absorption heat pump is connect with driving steam pipework；Gas heater is connect by heated by natural gas water lines with absorption heat pump.The utility model realizes maximally utilizing for absorption heat pump, and annual full season maximum revenue.
Description
Technical field
The utility model belongs to more than thermal power generating technology field more particularly to a kind of 9F type combustion engine combined cycle unit flue gas
Hot heat supply and inlet gas cooling, gas heating coupled system.
Background technique
There is currently several aspect problems for combustion engine combined cycle unit, first is that since environment temperature increases under summer operating mode,
Combustion engine output drop, and then influence the power output of entire combined cycle unit；Second is that there are larger wastes for waste heat boiler smoke discharging residual heat；
Third is that influencing combined cycle generation efficiency when natural gas temperature is relatively low, need to guarantee centainly to enter the natural gas temperature of combustion engine.With
On it is especially prominent for 9F type combustion engine combined cycle unit.
Due to combustion engine working characteristics, after environment temperature increases, causes to enter the decline of compressor air quality, combustion engine is caused to go out
Power reduces.Meanwhile the conditions such as ambient air humidity, also influence combustion engine power output.Always there is flue gas thermal flue gas in remaining pot boiler, such as
Fruit is not used, and very big waste heat losses will be present.But fume afterheat utilizes, and is limited by flue gas heat exchange reclaimer and waste heat
Two aspects of purposes.First is that needing to solve cryogenic heat exchange equipment prevents etching problem, need to solve the consumption of waste heat recycling for two times
Problem.
Natural gas enters before combustion engine burnt, and when temperature is relatively low, influences gas turbine efficiency and the combined cycle thermal efficiency.
Further, since individually carrying out combustion engine inlet gas cooling under the external environment conditions such as current loads rate and depth peak regulation
Or fume afterheat can only be realized and be worked independently in summer or winter using transformation, investment is all bigger, and Technical Economy is all opposite
It is bad, it needs to study coupling using system and plays bigger Technical Economy so that primary equipment investment can be run in full season.
Utility model content
The purpose of the utility model is to provide a kind of 9F type combustion engine combined cycle unit fume afterheat heat supply and inlet gas cooling,
Gas heating coupled system, by the way that absorption type heat pump system is arranged, under summer operating mode, recycling combustion engine compressor inlet air
Heat improves combustion engine and combined cycle power output to cool down inlet air, while in winter under operating condition, recovery waste heat boiler exhaust gas cigarette
Gas waste heat is used for external heat supply, in addition, fume afterheat or atmospheric heat heated natural gas air inlet using backheat, further to mention
The high circulation thermal efficiency is realized and plays maximally utilizing for absorption heat pump unit system, and annual full season maximum revenue.
The utility model provides a kind of fume afterheat heat supply and inlet gas cooling, gas heating coupled system, is applied to 9F
Type combustion engine combined cycle unit, including gas turbine, waste heat boiler, combustion engine compressor inlet aerial cooler, flue gas heat-exchange unit,
Absorption heat pump, gas heater；Gas heater, combustion engine compressor inlet aerial cooler are connect with gas turbine,
Gas turbine is connect with waste heat boiler；
Combustion engine compressor inlet aerial cooler is connect by the first cooling water pipeline with absorption heat pump, flue gas heat-exchange unit
It is connect by the second cooling water pipeline with absorption heat pump；Absorption heat pump is connect with unit circulation and heat network system；
Absorption heat pump is connect with driving steam pipework；Gas heater is connected by heated by natural gas water lines and absorption heat pump
It connects；
Under summer operating mode, it is cold to recycle the combustion engine compressor inlet air for consuming driving steam for absorption heat pump
But in device air heat, into unit circulation, to reduce combustion engine compressor inlet air themperature；Operating condition in winter
Under, absorption heat pump drives steam for consuming, the smoke discharging residual heat in recovered flue gas heat exchanger, to heat network system heat supply.
According to the above aspect of the present invention, utilizing absorption type heat by fume afterheat heat supply and inlet gas cooling, gas heating coupled system
Pump recycles the heat of combustion engine compressor inlet air under summer operating mode to cool down inlet air, improves combustion engine and combines and follows
Ring power output, while in winter under operating condition, recovery waste heat boiler discharging flue gas waste heat is used for external heat supply, in addition, utilizing backheat
Fume afterheat or atmospheric heat heated natural gas air inlet, further improve thermal efficiency of cycle, realize absorption heat pump most
Bigization utilizes, and annual full season maximum revenue.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the heat supply of the utility model fume afterheat and inlet gas cooling, gas heating coupled system.
Figure label:
1- gas turbine；2- waste heat boiler；3- combustion engine compressor inlet aerial cooler；Pot flue gas heat-exchange unit more than 4-；5-
Absorption heat pump；6- drives steam pipework；7- unit recirculated cooling water or heat supply network circulating water line；The first cooling water pipeline of 8-；
The second cooling water pipeline of 9-；10- gas heater；11- heated by natural gas water lines.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Join shown in Fig. 1, present embodiments provide a kind of fume afterheat heat supply and inlet gas cooling, gas heating coupled system,
Applied to 9F type combustion engine combined cycle unit, including gas turbine 1, waste heat boiler 2, combustion engine compressor inlet aerial cooler 3,
Flue gas heat-exchange unit 4, absorption heat pump 5, gas heater 10；Gas heater 10, combustion engine compressor inlet air are cooling
Device 3 is connect with gas turbine 1, and gas turbine 1 is connect with waste heat boiler 2；
Combustion engine compressor inlet aerial cooler 3 is connect by the first cooling water pipeline 8 with absorption heat pump 5, and flue gas changes
Hot device 4 is connect by the second cooling water pipeline 9 with absorption heat pump 5；Absorption heat pump 5 and unit circulation and heat supply network system
System connection；Absorption heat pump 5 is connect with driving steam pipework 6；Gas heater 10 by heated by natural gas water lines 11 with
Absorption heat pump 5 connects；
Under summer operating mode, absorption heat pump 5 recycles combustion engine compressor inlet aerial cooler for consuming driving steam
The heat of air in 3, into unit circulation, to reduce combustion engine compressor inlet air themperature；In winter under operating condition, inhale
Receipts formula heat pump 5 drives steam for consuming, the smoke discharging residual heat in recovered flue gas heat exchanger 4, to heat network system heat supply.
The fume afterheat heat supply and inlet gas cooling, gas heating coupled system, by absorption heat pump, in summer operating mode
Under, the heat of combustion engine compressor inlet air is recycled to cool down inlet air, improves combustion engine and combined cycle is contributed, while
Under winter condition, recovery waste heat boiler discharging flue gas waste heat is used for external heat supply, in addition, utilizing the fume afterheat or air of backheat
Heat natural gas air inlet, further improves thermal efficiency of cycle, realizes maximally utilizing for absorption heat pump, and annual
Full season maximum revenue.
The utility model is described in further detail below.
The high-temperature flue gas to have done work in gas turbine 1 enters waste heat boiler 2, and 2 smoke exhaust heat of waste heat boiler is changed by flue gas
Hot 4 surface heat exchanging of device or evaporation and heat-exchange, the cooling water recycling in the second cooling water pipeline 9, combustion engine compressor inlet air warp
Combustion engine compressor inlet aerial cooler 3 is crossed, by surface heat exchanging or evaporation and heat-exchange by the cooling water in the first cooling water pipeline 8
Recycling, natural gas is after the preparatory surface heat exchanging of heated by natural gas water lines 11 heating in gas heater 10, into combustion
The combustion chamber of aircraft turbine engine 1, the atmospheric heat in combustion engine compressor inlet aerial cooler 3, by cold in the first cooling water pipeline 8
But after water absorbs, into absorption heat pump 5, waste heat boiler smoke discharging residual heat is by flue gas heat-exchange unit 4 by the second cooling water pipeline 9
Cooling water recycling drive the driving steam in steam pipework 6 to enter the generation of absorption heat pump 5 into absorption heat pump 5
Cooling water in device, the first cooling water pipeline 8 or the second cooling water pipeline 9 enters the evaporator of absorption heat pump 5, unit circulation
Heating water in cooling water or heat supply network circulating water line 7 and heated by natural gas water lines 11 enters the absorption of absorption heat pump 5
Device.
Under summer operating mode, the consumption of absorption heat pump 5 part driving steam, driving steam pressure is 0.2-0.4MPa, mistake
Temperature is no more than 10 DEG C of superheated steam, recycles the heat of air in combustion engine compressor inlet aerial cooler 3, follows into unit
Ring water system, and then combustion engine entering air temperature is reduced, it can be achieved that air themperature is reduced to 27 DEG C from 35 DEG C, realization combustion engine is contributed
Increase by 6% or heat consumption reduction by 0.5%.
In winter under operating condition, the consumption of absorption heat pump 5 part driving steam, driving steam pressure is 0.2-0.4MPa, mistake
Temperature is no more than 10 DEG C of superheated steam, the smoke discharging residual heat in recovered flue gas heat exchanger 4, and flue-gas temperature can be reduced to 30 from 80 DEG C
DEG C, by the external heat supply of heat supply network circulating water line, hot net water is promoted from 50 DEG C to 80 DEG C, realizes the benefit of waste heat thermal flue gas
With, raising combined cycle efficiency, while increasing full factory's heat capacity about 25%, year, equivalent save marked about 40,000 tons of coal.
Meanwhile under above-mentioned operating condition, it can use the atmospheric heat or flue gas heat of the recycling of absorption heat pump 5, pass through
Gas heater 10 heats the natural gas into 1 combustion chamber of gas turbine in advance, can be further improved combined cycle heat
Efficiency about 0.1%.
The above is only the preferred embodiment of the utility model, is not intended to limit the utility model, it is noted that
For those skilled in the art, without deviating from the technical principle of the utility model, it can also do
Several improvements and modifications out, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (1)
1. a kind of fume afterheat heat supply and inlet gas cooling, gas heating coupled system are applied to 9F type combustion engine combined cycle unit,
It is characterised in that it includes gas turbine, waste heat boiler, combustion engine compressor inlet aerial cooler, flue gas heat-exchange unit, absorption type heat
Pump, gas heater；The gas heater, combustion engine compressor inlet aerial cooler are connect with the gas turbine,
The gas turbine is connect with the waste heat boiler；
The combustion engine compressor inlet aerial cooler is connect by the first cooling water pipeline with the absorption heat pump, the cigarette
Gas heat exchanger is connect by the second cooling water pipeline with the absorption heat pump；The absorption heat pump and unit circulation
And heat network system connection；The absorption heat pump is connect with driving steam pipework；The gas heater is added by natural gas
Hot water line connect with the absorption heat pump；
Under summer operating mode, it is cold to recycle the combustion engine compressor inlet air for consuming driving steam for the absorption heat pump
But in device air heat, into unit circulation, to reduce combustion engine compressor inlet air themperature；Operating condition in winter
Under, the absorption heat pump recycles the smoke discharging residual heat in the flue gas heat-exchange unit, supplies to heat network system for consuming driving steam
Heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821674287.6U CN209483484U (en) | 2018-10-16 | 2018-10-16 | Fume afterheat heat supply and inlet gas cooling, gas heating coupled system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821674287.6U CN209483484U (en) | 2018-10-16 | 2018-10-16 | Fume afterheat heat supply and inlet gas cooling, gas heating coupled system |
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| CN209483484U true CN209483484U (en) | 2019-10-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356724A (en) * | 2018-10-16 | 2019-02-19 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Fume afterheat heat supply and inlet gas cooling, gas heating coupled system |
-
2018
- 2018-10-16 CN CN201821674287.6U patent/CN209483484U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356724A (en) * | 2018-10-16 | 2019-02-19 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Fume afterheat heat supply and inlet gas cooling, gas heating coupled system |
| CN109356724B (en) * | 2018-10-16 | 2024-04-26 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Coupling method of flue gas waste heat supply and air inlet cooling and gas heating |
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