CN109339882A - Combustion engine combined cycle unit fume afterheat couples recovery system with turbine exhaust heat - Google Patents
Combustion engine combined cycle unit fume afterheat couples recovery system with turbine exhaust heat Download PDFInfo
- Publication number
- CN109339882A CN109339882A CN201811187628.1A CN201811187628A CN109339882A CN 109339882 A CN109339882 A CN 109339882A CN 201811187628 A CN201811187628 A CN 201811187628A CN 109339882 A CN109339882 A CN 109339882A
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- Prior art keywords
- heat
- steam
- turbine
- flue gas
- district heating
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 31
- 239000003517 fume Substances 0.000 title claims abstract description 23
- 238000011084 recovery Methods 0.000 title claims abstract description 13
- 239000002918 waste heat Substances 0.000 claims abstract description 45
- 239000003546 flue gas Substances 0.000 claims abstract description 38
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000010521 absorption reaction Methods 0.000 claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 23
- 238000005086 pumping Methods 0.000 claims abstract description 7
- 239000000498 cooling water Substances 0.000 claims abstract description 6
- 238000004064 recycling Methods 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 230000002209 hydrophobic effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 abstract description 8
- 238000010168 coupling process Methods 0.000 abstract description 8
- 238000005859 coupling reaction Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241001212038 Arcola Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/005—Using steam or condensate extracted or exhausted from steam engine plant by means of a heat pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
- F01K17/025—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic in combination with at least one gas turbine, e.g. a combustion gas turbine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
-
- 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]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention relates to a kind of combustion engine combined cycle unit fume afterheats, and recovery system, including gas turbine, waste heat boiler, steam turbine, flue gas heat-exchange unit, absorption heat pump, heat exchangers for district heating are coupled with turbine exhaust heat；Gas turbine is connect by combustion engine smoke-exhaust pipeline with waste heat boiler, and waste heat boiler is connect with flue gas heat-exchange unit, and flue gas heat-exchange unit is connect by flue gas heat-exchange unit cooling water pipeline with absorption heat pump；Steam turbine connect respectively by steam pipework with heat exchangers for district heating and absorption heat pump, for heat exchangers for district heating conveying gas turbine exhaust gas or pumping, and to absorption heat pump feed drive steam；Absorption heat pump and heat exchangers for district heating pass through hot net water piping connection.The present invention can be realized combustion engine combined cycle unit fume afterheat and the coupling of turbine exhaust heat recycles, and improves combined cycle heating efficiency, greatly reduces unit cogeneration of heat and power energy consumption.
Description
Technical field
The invention belongs to thermal power generating technology field more particularly to a kind of combustion engine combined cycle unit fume afterheats and steamer
Machine waste heat couples recovery system.
Background technique
There is waste heat loss in combustion engine combined cycle unit waste heat boiler and steam turbine.For waste heat boiler, smoke evacuation is not only
Only waste heat is caused to waste, also results in the environmental issues such as flue gas white cigarette.
For the north for heat type combustion engine combined cycle unit, generally all in big city near, heat demand is all bigger.
In addition, environmental issue caused by arcola heat supply, than more prominent, attention was compared for heat problem for cleaning in recent years in big city.
Under the conditions of not increasing new unit, the heat capacity of existing unit is improved, is to solve heat demand, cleaning heating
An important topic.
How the exhausted spare heat of combustion engine combined cycle unit exhaust-heat boiler flue gas waste heat and steam turbine is recycled simultaneously, so that combustion
The waste heat of machine combined cycle unit is utilized effectively, and being one has problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of combustion engine combined cycle unit fume afterheats to couple recycling system with turbine exhaust heat
System recycles the fume waste heat of waste heat boiler by setting flue gas heat-exchange unit and absorption heat pump, and tentatively heating hot net water arrives
80 DEG C, while hot net water is further heated to 120 DEG C using steam turbine exhaust heat, realize fume afterheat and turbine exhaust heat
Coupling all of, improve combined cycle efficiency and reduce for thermal energy consumption.
The present invention provides a kind of combustion engine combined cycle unit fume afterheats to couple recovery system with turbine exhaust heat, including
Gas turbine, waste heat boiler, steam turbine, flue gas heat-exchange unit, absorption heat pump, heat exchangers for district heating；Gas turbine passes through combustion engine
Smoke-exhaust pipeline is connect with waste heat boiler, and waste heat boiler is connect with flue gas heat-exchange unit, and flue gas heat-exchange unit is cooling by flue gas heat-exchange unit
Water lines are connect with absorption heat pump；Steam turbine is connect with heat exchangers for district heating and absorption heat pump respectively by steam pipework,
For conveying gas turbine exhaust gas or pumping to heat exchangers for district heating, and to absorption heat pump feed drive steam；Absorption heat pump
Pass through hot net water piping connection with heat exchangers for district heating；
Waste heat boiler smoke discharging residual heat enters absorption heat pump by flue gas heat-exchange unit recycling, and passes through consumption driving steam
Afterwards, the hot net water tentatively in heating heat supply network water lines, preliminarily heated hot net water enter more than heat exchangers for district heating recovered steam turbine
Heat further increases heat supply network coolant-temperature gage.
Further, heat exchangers for district heating connect by supply line with waste heat boiler, waste heat boiler pass through steam pipework and
Steam turbine connection, gas turbine exhaust gas or pumping in heat exchangers for district heating are after cooling hydrophobic to be delivered to waste heat by supply line
Flue gas heat is absorbed in boiler, using flue gas water supply, steam turbine is delivered to by steam pipework after generation initial steam and is supplied
Steam turbine acting.
According to the above aspect of the present invention, coupling recovery system, energy with turbine exhaust heat by combustion engine combined cycle unit fume afterheat
It enough realizes that the coupling of combustion engine combined cycle unit fume afterheat and turbine exhaust heat recycles, improves combined cycle for thermal effect
Rate greatly reduces unit cogeneration of heat and power energy consumption.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
Fig. 1 is the structural representation that combustion engine combined cycle unit fume afterheat of the present invention couples recovery system with turbine exhaust heat
Figure.
Figure label:
1- gas turbine；2- waste heat boiler；3- steam turbine；4- flue gas heat-exchange unit；5- absorption heat pump；The heating of 6- heat supply network
Device；7- heat supply network water lines；The second steam pipework of 8-；The first steam pipework of 9-；10- third steam pipework；11- supply line；12-
Combustion engine smoke-exhaust pipeline；13- flue gas heat-exchange unit cooling water pipeline.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Join shown in Fig. 1, present embodiments provides a kind of combustion engine combined cycle unit fume afterheat and coupled with turbine exhaust heat
Recovery system, including gas turbine 1, waste heat boiler 2, steam turbine 3, flue gas heat-exchange unit 4, absorption heat pump 5, heat exchangers for district heating
6；Gas turbine 1 is connect by combustion engine smoke-exhaust pipeline 12 with waste heat boiler 2, and waste heat boiler 2 is connect with flue gas heat-exchange unit 4, flue gas
Heat exchanger 4 is connect by flue gas heat-exchange unit cooling water pipeline 13 with absorption heat pump 5；Steam turbine 3 passes through the first steam pipework 9
It is connect with heat exchangers for district heating, for conveying gas turbine exhaust gas or pumping to heat exchangers for district heating 6, steam turbine 3 passes through the second steam
Pipeline 8 is connect with absorption heat pump 5, is used for 5 feed drive steam of absorption heat pump；Absorption heat pump 5 and heat exchangers for district heating 6
It is connected by heat supply network water lines 7；
2 smoke discharging residual heat of waste heat boiler enters absorption heat pump 5 by the recycling of flue gas heat-exchange unit 4, and is steamed by consumption driving
After vapour, the preliminary hot net water heated in heat supply network water lines 7, preliminarily heated hot net water enters 6 recovered steam wheel of heat exchangers for district heating
Machine waste heat further increases heat supply network coolant-temperature gage.
Recovery system is coupled with turbine exhaust heat by the combustion engine combined cycle unit fume afterheat, can be realized combustion engine connection
The coupling for closing Cycle Unit fume afterheat and turbine exhaust heat recycles, and improves combined cycle heating efficiency, greatly reduces
Unit cogeneration of heat and power energy consumption.
In the present embodiment, heat exchangers for district heating 6 is connect by supply line 11 with waste heat boiler 2, and waste heat boiler 2 passes through the
Three steam pipeworks 10 are connect with steam turbine 3, and the gas turbine exhaust gas or pumping in heat exchangers for district heating 6 are after cooling hydrophobic by giving
Water lines 11, which are delivered in waste heat boiler 2, absorbs flue gas heat, using flue gas water supply, is steamed after generating initial steam by third
Vapor pipeline 10 is delivered to steam turbine 3 and does work for steam turbine.
Invention is further described in detail below.
High-temperature flue gas enters in waste heat boiler 2 by combustion engine smoke-exhaust pipeline 12 after gas turbine 1 burns heats water supply, waste heat
Boiler 2 heats the flue gas that is discharged after water supply and enters after flue gas heat-exchange unit 4 is further cooled, then is discharged into atmosphere, 2 benefit of waste heat boiler
Heating water supply is carried out with flue gas, is sent into the acting of steam turbine 3 after generating initial steam, fume afterheat is by flue gas in flue gas heat-exchange unit 4
Cooling water in heat exchanger cooling water pipeline 13 is absorbed into the evaporator of absorption heat pump 5, in heat supply network water lines 7 hot net water into
The absorber for entering absorption heat pump 5 is tentatively heated, and it is logical as driving steam that steam discharge or appropriate pressure steam extraction are arranged in steam turbine 3
The generator that the second steam pipework 8 enters absorption heat pump 5 is crossed, steam discharge or appropriate pressure steam extraction are arranged in steam turbine 3 by the
One steam pipework 9 enters heat exchangers for district heating 6, heats the hot net water in heat supply network water lines 7, and first into heat exchangers for district heating 6 is steamed
Steam in vapor pipeline 9 be cooled to it is hydrophobic after, as water supply by supply line 11 enter waste heat boiler 2 in absorb flue gas
Heat.
In heating season, 2 smoke discharging residual heat of combustion engine Combined Cycle Heat Recovery Boiler enters absorption by the recycling of flue gas heat-exchange unit 4
Heat pump 5, the smoke evacuation of waste heat boiler 2 are reduced to 30 DEG C from 80 DEG C, and by consumption a part driving steam after, in absorption heat pump 5
In tentatively heat hot net water in heat supply network water lines 7 to 80 DEG C, the hot net water being heated enters back into heat exchangers for district heating 6 and further returns
3 middle cylinder exhausted spare heat of steam turbine is received, so that heat supply network coolant-temperature gage is further increased to 120 DEG C, then realizes combustion engine combined cycle
The coupling of unit fume afterheat and turbine exhaust heat recycles, and improves combined cycle heating efficiency, greatly reduces unit
Cogeneration of heat and power energy consumption.
For typical a set of one-to-one 9F grade combustion engine combined cycle unit, pass through combustion engine combined cycle unit fume afterheat
Recovery system is coupled with turbine exhaust heat, fume afterheat about 60MW can be recycled, while steam turbine exhaust heat can be recycled about
100MW is, it can be achieved that the waste heat of combustion engine combined cycle unit waste heat boiler and the entire unit of steam turbine all recycles, and increase is for thermal energy
Power about 50%, full factory's efficiency improve 15%.
In addition, the present invention also has applicability for coal unit residual heat from boiler fume and turbine exhaust heat coupling recycling
With the property used for reference.By the coupling of residual heat from boiler fume and steam turbine exhaust heat using recycling, it can be achieved that entire unit waste heat
All of the near-zero release of i.e. entire unit waste heat, unit operation efficiency is greatly improved.
The above is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is several improvement and
Modification, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of combustion engine combined cycle unit fume afterheat couples recovery system with turbine exhaust heat, which is characterized in that including combustion
Gas-turbine, waste heat boiler, steam turbine, flue gas heat-exchange unit, absorption heat pump, heat exchangers for district heating；The gas turbine passes through combustion
Machine smoke-exhaust pipeline is connect with the waste heat boiler, and the waste heat boiler is connect with the flue gas heat-exchange unit, the flue gas heat-exchange unit
It is connect by flue gas heat-exchange unit cooling water pipeline with the absorption heat pump；The steam turbine by steam pipework respectively with institute
Heat exchangers for district heating and absorption heat pump connection are stated, for conveying gas turbine exhaust gas or pumping to the heat exchangers for district heating, with
And to the absorption heat pump feed drive steam；The absorption heat pump and heat exchangers for district heating pass through hot net water piping connection；
The waste heat boiler smoke discharging residual heat enters the absorption heat pump by flue gas heat-exchange unit recycling, and is driven by consumption
After dynamic steam, the hot net water in the heat supply network water lines is tentatively heated, preliminarily heated hot net water enters the heat exchangers for district heating
Recovered steam turbine waste heat, further increases heat supply network coolant-temperature gage.
2. combustion engine combined cycle unit fume afterheat according to claim 1 couples recovery system with turbine exhaust heat,
It is characterized in that, the heat exchangers for district heating is connect by supply line with the waste heat boiler, and the waste heat boiler passes through steam pipe
Road is connect with the steam turbine, gas turbine exhaust gas in the heat exchangers for district heating or pumping is after cooling hydrophobic passes through feed pipe
Road, which is delivered in the waste heat boiler, absorbs flue gas heat, using flue gas water supply, passes through steam pipework after generating initial steam
Steam turbine is delivered to do work for steam turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187628.1A CN109339882A (en) | 2018-10-12 | 2018-10-12 | Combustion engine combined cycle unit fume afterheat couples recovery system with turbine exhaust heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187628.1A CN109339882A (en) | 2018-10-12 | 2018-10-12 | Combustion engine combined cycle unit fume afterheat couples recovery system with turbine exhaust heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109339882A true CN109339882A (en) | 2019-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811187628.1A Pending CN109339882A (en) | 2018-10-12 | 2018-10-12 | Combustion engine combined cycle unit fume afterheat couples recovery system with turbine exhaust heat |
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| CN (1) | CN109339882A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856364A (en) * | 2021-01-21 | 2021-05-28 | 中国神华能源股份有限公司国华电力分公司 | Method for increasing waste heat utilization rate of gas combined cycle unit |
| CN112944451A (en) * | 2021-04-15 | 2021-06-11 | 晟源高科(北京)科技有限公司 | Natural gas energy supplementing graded utilization system based on pressure isolation station and adjusting method |
| CN114754399A (en) * | 2022-03-11 | 2022-07-15 | 华电电力科学研究院有限公司 | Cogeneration system and method for secondary heating industrial heat supply network |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203717051U (en) * | 2013-12-31 | 2014-07-16 | 华电电力科学研究院 | Combined cycling low-temperature exhaust heat recycling device |
| CN104533551A (en) * | 2014-08-29 | 2015-04-22 | 中国华能集团清洁能源技术研究院有限公司 | Waste heat recovery IGCC (integrated gasification combined cycle) combined heat and power generation central heating system and method |
| CN209385192U (en) * | 2018-10-12 | 2019-09-13 | 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 | Combustion engine combined cycle unit fume afterheat couples recovery system with turbine exhaust heat |
-
2018
- 2018-10-12 CN CN201811187628.1A patent/CN109339882A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203717051U (en) * | 2013-12-31 | 2014-07-16 | 华电电力科学研究院 | Combined cycling low-temperature exhaust heat recycling device |
| CN104533551A (en) * | 2014-08-29 | 2015-04-22 | 中国华能集团清洁能源技术研究院有限公司 | Waste heat recovery IGCC (integrated gasification combined cycle) combined heat and power generation central heating system and method |
| CN209385192U (en) * | 2018-10-12 | 2019-09-13 | 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 | Combustion engine combined cycle unit fume afterheat couples recovery system with turbine exhaust heat |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856364A (en) * | 2021-01-21 | 2021-05-28 | 中国神华能源股份有限公司国华电力分公司 | Method for increasing waste heat utilization rate of gas combined cycle unit |
| CN112856364B (en) * | 2021-01-21 | 2022-12-30 | 中国神华能源股份有限公司国华电力分公司 | Method for increasing waste heat utilization rate of gas combined cycle unit |
| CN112944451A (en) * | 2021-04-15 | 2021-06-11 | 晟源高科(北京)科技有限公司 | Natural gas energy supplementing graded utilization system based on pressure isolation station and adjusting method |
| CN114754399A (en) * | 2022-03-11 | 2022-07-15 | 华电电力科学研究院有限公司 | Cogeneration system and method for secondary heating industrial heat supply network |
| CN114754399B (en) * | 2022-03-11 | 2023-08-25 | 华电电力科学研究院有限公司 | Combined heat and power generation system and method for secondary heating industrial heat supply network |
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