CN103195577B - Gas turbine air inlet temperature regulating system - Google Patents
Gas turbine air inlet temperature regulating system Download PDFInfo
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- CN103195577B CN103195577B CN201310123760.7A CN201310123760A CN103195577B CN 103195577 B CN103195577 B CN 103195577B CN 201310123760 A CN201310123760 A CN 201310123760A CN 103195577 B CN103195577 B CN 103195577B
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Abstract
The invention discloses a kind of gas turbine air inlet temperature regulating system, comprise low-pressure gas compressor, high pressure gas compressor, gas turbine air compressor, gas turbine, air heat exchanger, hot water operated absorption refrigerating machine and gas change heater, the hot side steam outlet pipe of air heat exchanger is connected with gas turbine air compressor, and the cold side water intake of air heat exchanger and water outlet pass through pipeline communication with the water outlet of hot water operated absorption refrigerating machine and water intake respectively; The hot side suction tude of gas change heater is connected with low-pressure gas compressor, and gas change heater hot side steam outlet pipe is connected with high pressure gas compressor, and high pressure gas compressor is connected with gas turbine; The cold side water intake of gas change heater and water outlet are connected respectively by the water outlet of pipeline and hot water operated absorption refrigerating machine and water intake.Present system is simple, and investment, operation and maintenance cost are low, can be widely used in gas turbine power generation technique.
Description
Technical field
The present invention relates to a kind of humidity control system, relate to a kind of gas turbine air inlet temperature regulating system specifically.
Background technique
In recent years, the integrated gas-steam combined cycle power plant technique utilizing Iron And Steel Plant's residual gas (high, burnt, turn coal gas) to generate electricity in steel industry is with considerable scale.It can efficiency utilization Iron And Steel Plant complementary energy waste heat.
During gas turbine operation, generated output affects larger by the temperature of atmosphere outside, for same production site, winter environment temperature is low, air density is large, atmospheric pressure is high, and relative moisture is low, and gas turbine power generation is exerted oneself height, even higher than design conditions value (design conditions are ISO operating mode, air inlet temperature 15 DEG C, atmospheric pressure 0.10135MPa, relative humidity of atomsphere 60%); And summer environment temperature is high, air density is little, and atmospheric pressure is low, and relative moisture is high, and gas turbine power generation is exerted oneself a lot lower than design conditions value.Therefore, the process of cooling dehumidification can be carried out to gas turbine inlet air (air) in summer, significantly can improve the generated energy of gas turbine.
Meanwhile, the supply pressure of Iron And Steel Plant's residual gas is low (5kPa-15kPa), for adapting to the gas inlet requirement of gas turbine, must carry out pressure treatment to it before entering gas turbine combustion.Current gas compression many employings multistage compression, intercooled mode, low-pressure gas compressor exit temperature is generally 150 DEG C-180 DEG C, and coal gas out after gas cooler, returns high pressure gas compressor from low-pressure gas compressor.The type of cooling of gas cooler then adopts usually introduces industry water or inclosed recirculated cooling water by outside, cools coal gas of high temperature, and hot water cools Posterior circle by cooling tower and uses, and the waste heat of coal gas of high temperature can not get effective recovery.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides and a kind ofly can make full use of coal gas of high temperature waste heat, simultaneously can make gas turbine can the gas turbine air inlet temperature regulating system that is significantly increased of more existing generated output under higher than ISO operating mode inlet air conditions.
To achieve these goals, technological scheme of the present invention is as follows: a kind of gas turbine air inlet temperature regulating system, comprise low-pressure gas compressor (4), high pressure gas compressor (5), gas turbine air compressor (6), gas turbine (7), described gas turbine air compressor (6) is connected with gas turbine (7), it is characterized in that: also comprise air heat exchanger (1), hot water operated absorption refrigerating machine (2) and gas change heater (3), the hot side suction tude of described air heat exchanger (1) communicates with air, the hot side steam outlet pipe of described air heat exchanger (1) is connected with gas turbine air compressor (6), the cold side water intake of described air heat exchanger (1) and water outlet pass through pipeline communication with the water outlet of hot water operated absorption refrigerating machine (2) and water intake respectively,
The hot side suction tude of described gas change heater (3) is connected with low-pressure gas compressor (4), described gas change heater (3) hot side steam outlet pipe is connected with high pressure gas compressor (5), and described high pressure gas compressor (5) is connected with gas turbine (7); The cold side water intake of described gas change heater (3) and water outlet are connected respectively by the water outlet of pipeline and hot water operated absorption refrigerating machine (2) and water intake.
Adopt technique scheme, air heat exchanger is utilized to regulate the temperature of gas turbine inlet air (air), improve exerting oneself of under warm wet climate environment gas turbine, and under regulating hot water operated absorption refrigerating machine's driving heat source of air inlet (air) temperature to come from the condition do not raised in guarantee gas turbine gas inlet temperature, reclaim the heat that combustion gas (coal gas) produces in pressure process to greatest extent, effectively make use of the low gesture waste heat of gas compression pump cooling, decrease the electrisity consumption of recirculated cooling water and hot water operated absorption refrigerating machine, improve the heat-economy of gas turbine powered generator.
In technique scheme: the hot side-inlet of described air heat exchanger (1) is equipped with air filter (10).
In technique scheme: the pipeline that the cold side water outlet of described gas change heater (3) is connected with the water intake of hot water operated absorption refrigerating machine (2) is provided with the first three-way control valve (11) and the second flow measuring element (21), and the 3rd end of described first three-way control valve (11) is connected with external heat user water-supplying mouth (a) by pipeline; The pipeline that the cold side water intake of described gas change heater (3) is connected with the water outlet of hot water operated absorption refrigerating machine (2) is provided with the second three-way control valve (12) and the 3rd flow measuring element (22), and the 3rd end of this second three-way control valve (12) is communicated with outside heat supply user backwater mouth (b) by pipeline.When gas inlet (air) does not need cool-down dehumidification, the waste heat in combustion gas (coal gas) pressure process of recovery also can be used for heating.
In technique scheme: the pipeline that the cold side water intake of described air heat exchanger (1) is communicated with the water outlet of hot water operated absorption refrigerating machine (2) is provided with modulating valve (13) and first flow measuring cell (20).
In technique scheme, conveniently regulate temperature, the hot side suction tude of described air heat exchanger (1) is provided with the first temperature measuring element (14), the hot side steam outlet pipe of described air heat exchanger (1) is provided with the second temperature measuring element (15), the pipeline that described hot water operated absorption refrigerating machine (2) water outlet is connected with air heat exchanger (1) cold side water intake is provided with the 3rd temperature measuring element (16), described first temperature measuring element (14), the hot side suction tude of described gas change heater (3) is provided with the 4th temperature measuring element (17), the hot side steam outlet pipe of gas change heater (3) is provided with the 5th temperature measuring element (18), the pipeline connecting the water outlet of described gas change heater (3) cold side and the water intake of hot water operated absorption refrigerating machine (2) is provided with the 6th temperature measuring element (19).
In technique scheme: described air heat exchanger (1), hot water operated absorption refrigerating machine (2) and gas change heater (3) be more than two, position all.
In technique scheme: all gas change heaters (3) gas change heater group in series, the hot side suction tude of this gas change heater group is connected with low-pressure gas compressor (4), the hot side steam outlet pipe of this gas change heater group is connected with high pressure gas compressor (5), and every platform air heat exchanger (1) and hot water operated absorption refrigerating machine (2) work alone.
Beneficial effect: utilize and the temperature of gas turbine inlet air (air) is regulated, increase exerting oneself of unit, and under regulating the refrigerator driving heat source of air inlet (air) temperature to come from the condition do not raised in guarantee gas turbine gas inlet temperature, reclaim the heat that combustion gas (coal gas) produces in pressure process to greatest extent, decrease recirculated cooling water and refrigerator electrisity consumption, improve the heat-economy of gas turbine power generation, simultaneously, when gas inlet (air) does not need cool-down dehumidification, in combustion gas (coal gas) pressure process reclaimed, waste heat also can be used for heating.Present system is simple, and investment, operation and maintenance cost are low, can be widely used in gas turbine power generation technique.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment 1, as shown in Figure 1: a kind of gas turbine air inlet temperature regulating system of the present invention is by an air heat exchanger 1, a hot water operated absorption refrigerating machine 2, a gas change heater 3, low-pressure gas compressor 4, high pressure gas compressor 5, gas turbine air compressor 6, gas turbine 7, gas turbine powered generator 8, gas compression pump drive motor 9, air filter 10, first three-way control valve 11, second three-way control valve 12, modulating valve 13, first temperature measuring element 14, second temperature measuring element 15, 3rd temperature measuring element 16, 4th temperature measuring element 17, 5th temperature measuring element 18, 6th temperature measuring element 19, first flow measuring cell 20, the parts compositions such as the second flow measuring element 21 and the 3rd flow measuring element 22.All adopt existing structure with upper-part, the structure of each parts is not repeated at this.In figure, c place is gas inlet.
In the described hot side of air heat exchanger 1, circulation medium is air, and in cold side, circulation medium is water; Described hot water operated absorption refrigerating machine 2 water is refrigeration agent, lithium bromide is absorbing agent; In the hot side of gas change heater 3, circulation medium is coal gas, and in cold side, circulation medium is water.
The hot side suction tude of described air heat exchanger 1 is provided with air filter 10, the hot side steam outlet pipe of described air heat exchanger 1 is connected with gas turbine air compressor 6, and the cold side water intake of described air heat exchanger 1 and water outlet pass through pipeline communication with the water outlet of hot water operated absorption refrigerating machine 2 and water intake respectively; Pipeline between hot water operated absorption refrigerating machine 2 and air heat exchanger 1 is provided with at least one water pump.
The hot side suction tude of described gas change heater 3 is connected with low-pressure gas compressor 4, and described gas change heater 3 hot side steam outlet pipe is connected with high pressure gas compressor 5, and described high pressure gas compressor 5 is connected with gas turbine 7; The cold side water intake of described gas change heater 3 and water outlet are connected respectively by the water outlet of pipeline and hot water operated absorption refrigerating machine 2 and water intake.Described gas turbine air compressor 6 is connected with gas turbine 7, and described gas turbine 7 is connected with gas turbine powered generator 8, and described gas change heater 3 is provided with at least one water pump with the pipeline of hot water operated absorption refrigerating machine 2.
The thermal energy transfer of the coal gas after being compressed by low-pressure gas compressor 4 is to the cold side heated feed water of gas change heater 3, next stage high pressure gas compressor 5 is entered after coal gas is cooled, the absorption Coolers 2 of hot-water type is entered by the hot water that gas change heater 3 heats, as hot water operated absorption refrigerating machine 2 driving heat source, the cold water after heat release gets back to gas change heater 3.The cold water be made up of hot water operated absorption refrigerating machine 2 enters air heat exchanger 1, hot air heat is absorbed in air heat exchanger 1, reach the object of cooling-air, the water heated up after absorbing is got back in hot water operated absorption refrigerating machine 2, cooled air enters gas turbine air compressor 6, and the high pressure gas sent here with high-rank coal air compressor 5 after compression jointly enters work by combustion in gas turbine 7 and generates electricity.
The pipeline that the cold side water outlet of described gas change heater 3 is connected with the water intake of hot water operated absorption refrigerating machine 2 is provided with the first three-way control valve 11 and the second flow measuring element 21, and described first three-way control valve 11 the 3rd end is connected with external heat user water-supplying mouth a by pipeline; The pipeline that the cold side water intake of described gas change heater 3 is connected with the water outlet of hot water operated absorption refrigerating machine 2 is provided with the second three-way control valve 12 and the 3rd flow measuring element 22, and the 3rd end of this second three-way control valve 12 is communicated with outside heat supply user backwater mouth b by pipeline.
The pipeline that the cold side water intake of described air heat exchanger 1 is communicated with the water outlet of hot water operated absorption refrigerating machine 2 is provided with modulating valve 13 and first flow measuring cell 20.
The hot side suction tude of described air heat exchanger 1 is provided with the first temperature measuring element 14, the hot side steam outlet pipe of described air heat exchanger 1 is provided with the second temperature measuring element 15, the pipeline that described hot water operated absorption refrigerating machine 2 water outlet is connected with air heat exchanger 1 cold side water intake is provided with the 3rd temperature measuring element 16, described first temperature measuring element 14, second temperature measuring element 15, 3rd temperature measuring element 16, first flow measuring cell 20 and modulating valve 13 are interlocked, namely the first temperature measuring element 14, the temperature signal that second temperature measuring element 15 and the 3rd temperature measuring element 16 record, the flux signal that first flow measuring cell 20 records passes to control unit, this control unit regulating and controlling valve 13 aperture.
The hot side suction tude of described gas change heater 3 is provided with the 4th temperature measuring element 17, the hot side steam outlet pipe of gas change heater 3 is provided with the 5th temperature measuring element 18, the pipeline connecting the described water outlet of gas change heater 3 cold side and the water intake of hot water operated absorption refrigerating machine 2 is provided with the 6th temperature measuring element 19, described 4th temperature measuring element 17, 5th temperature measuring element 18, 6th temperature measuring element 19, second flow measuring element 21 and the 3rd flow measuring element 22 and the first three-way control valve 11 and the second three-way control valve 12 are interlocked, namely the 4th temperature measuring element 17, the temperature signal that 5th temperature measuring element 18 and the 6th temperature measuring element 19 record, the flux signal recorded all is passed to control unit by the second flow measuring element 21 and the 3rd flow measuring element 22, this control unit controls the first three-way control valve 11 and the second three-way control valve 12 aperture.
When not needing to lower the temperature to gas turbine 7 air inlet (air) (winter), by regulating the first three-way control valve 11, second three-way control valve 12, modulating valve 13, the hot water that gas change heater 3 heats being sent into other heat supply user and recycles.
Four, the 5th, the 6th temperature measuring element 17,18,19, second flow measuring element 21 and the 3rd flow measuring element 22 and the first three-way control valve 11 and the second three-way control valve 12 are interlocked, by regulating the first three-way control valve 11 and the second three-way control valve 12, control the gas change heater 3 cold side water yield, guarantee gas change heater 3 cooling effect; First, second, third temperature measuring element 14,15,16 and first flow measuring cell 20 are interlocked with modulating valve 13, by regulating and controlling valve 13, control the heat transfer effect of air heat exchanger 1.
Other structures of embodiment 2 are identical with embodiment 1, are more than two unlike described air heat exchanger 1, hot water operated absorption refrigerating machine 2 and gas change heater 3.Wherein said air heat exchanger 1 adopts mode in parallel to connect, and namely the hot side air outlet slit of every platform air heat exchanger 1 is all connected with combustion gas runner air compressor 6; Give gas turbine air compressor 6 air feed all separately, described hot water operated absorption refrigerating machine 2 adopts mode in parallel to connect, that is every platform hot-water type refrigerator 2 is connected with one or more gas change heater 3 and air heat exchanger 1 all separately, supplies water separately, works alone.Described gas change heater 3 can adopt mode in parallel to work alone separately, the hot side suction tude of every platform gas change heater 3 is connected with low-pressure gas compressor 4 respectively, the hot side steam outlet pipe of every platform gas change heater 3 is connected with high pressure gas compressor 5, also multiple stage gas change heater 3 can be together in series and work together, that is multiple stage gas change heater 3 forms gas change heater group after connecting, and the hot side suction tude of gas change heater group is connected with low-pressure gas compressor 4 and high pressure gas compressor 5 respectively with steam outlet pipe.
Claims (5)
1. a gas turbine air inlet temperature regulating system, comprise low-pressure gas compressor (4), high pressure gas compressor (5), gas turbine air compressor (6), gas turbine (7), described gas turbine air compressor (6) is connected with gas turbine (7), it is characterized in that: also comprise air heat exchanger (1), hot water operated absorption refrigerating machine (2) and gas change heater (3), the hot side suction tude of described air heat exchanger (1) communicates with air, air filter (10) the hot side-inlet of described air heat exchanger (1) is equipped with, the hot side steam outlet pipe of described air heat exchanger (1) is connected with gas turbine air compressor (6), the cold side water intake of described air heat exchanger (1) and the water outlet of hot water operated absorption refrigerating machine (2) pass through pipeline communication, the cold side water outlet of described air heat exchanger (1) and the water intake of hot water operated absorption refrigerating machine (2) pass through pipeline communication,
The hot side suction tude of described gas change heater (3) is connected with low-pressure gas compressor (4), described gas change heater (3) hot side steam outlet pipe is connected with high pressure gas compressor (5), and described high pressure gas compressor (5) is connected with gas turbine (7); The cold side water intake of described gas change heater (3) is connected by the water outlet of pipeline with hot water operated absorption refrigerating machine (2), the cold side water outlet of described gas change heater (3) is connected by the water intake of pipeline with hot water operated absorption refrigerating machine (2)
The pipeline that the cold side water outlet of described gas change heater (3) is connected with the water intake of hot water operated absorption refrigerating machine (2) is provided with the first three-way control valve (11) and the second flow measuring element (21), and the 3rd end of described first three-way control valve (11) is connected with external heat user water-supplying mouth (a) by pipeline; The pipeline that the cold side water intake of described gas change heater (3) is connected with the water outlet of hot water operated absorption refrigerating machine (2) is provided with the second three-way control valve (12) and the 3rd flow measuring element (22), and the 3rd end of this second three-way control valve (12) is communicated with outside heat supply user backwater mouth (b) by pipeline.
2. gas turbine air inlet temperature regulating system according to claim 1, is characterized in that: the pipeline that the cold side water intake of described air heat exchanger (1) is communicated with the water outlet of hot water operated absorption refrigerating machine (2) is provided with modulating valve (13) and first flow measuring cell (20).
3. gas turbine air inlet temperature regulating system according to claim 2, it is characterized in that: the hot side suction tude of described air heat exchanger (1) is provided with the first temperature measuring element (14), the hot side steam outlet pipe of described air heat exchanger (1) is provided with the second temperature measuring element (15), the pipeline that described hot water operated absorption refrigerating machine (2) water outlet is connected with air heat exchanger (1) cold side water intake is provided with the 3rd temperature measuring element (16), the hot side suction tude of described gas change heater (3) is provided with the 4th temperature measuring element (17), the hot side steam outlet pipe of described gas change heater (3) is provided with the 5th temperature measuring element (18), the pipeline connecting the water outlet of described gas change heater (3) cold side and the water intake of hot water operated absorption refrigerating machine (2) is provided with the 6th temperature measuring element (19).
4. gas turbine air inlet temperature regulating system according to any one of claim 1-3, is characterized in that: described air heat exchanger (1), hot water operated absorption refrigerating machine (2) and gas change heater (3) are more than two.
5. gas turbine air inlet temperature regulating system according to claim 4, it is characterized in that: all gas change heaters (3) gas change heater group in series, the hot side suction tude of this gas change heater group is connected with low-pressure gas compressor (4), the hot side steam outlet pipe of this gas change heater group is connected with high pressure gas compressor (5), and every platform air heat exchanger (1) and hot water operated absorption refrigerating machine (2) work alone.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310123760.7A CN103195577B (en) | 2013-04-11 | 2013-04-11 | Gas turbine air inlet temperature regulating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310123760.7A CN103195577B (en) | 2013-04-11 | 2013-04-11 | Gas turbine air inlet temperature regulating system |
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| CN103195577A CN103195577A (en) | 2013-07-10 |
| CN103195577B true CN103195577B (en) | 2015-08-26 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712433A (en) * | 2015-01-14 | 2015-06-17 | 同济大学 | Inlet-air cooling system used for mini-sized gas turbine by driving flue-gas waste-heat injection for refrigeration |
| CN105971736A (en) * | 2016-07-01 | 2016-09-28 | 陈梦娜 | Air inlet temperature adjusting system for gas turbine |
| CN112576375B (en) * | 2020-12-29 | 2023-09-22 | 上海电气燃气轮机有限公司 | System and method for utilizing cold and heat quantity between coal presses of low-heat-value combined cycle unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2164465Y (en) * | 1993-08-30 | 1994-05-11 | 北京市西城区新开通用试验厂 | Numerical controlled gas turbine electricity heat, cold joint supply equipment |
| EP2180165A2 (en) * | 2008-10-24 | 2010-04-28 | General Electric Company | A system and method for changing the efficiency of a combustion turbine |
| CN202643715U (en) * | 2012-07-03 | 2013-01-02 | 武汉钢铁(集团)公司 | Gas steam combined cycle power generation process waste heat utilization system |
| CN102900531A (en) * | 2012-10-23 | 2013-01-30 | 中国船舶重工集团公司第七�三研究所 | Combustion gas turbine system with inlet cooling and indirect cooling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2326247C1 (en) * | 2007-01-23 | 2008-06-10 | Михаил Юрьевич Кудрявцев | Method of combined cycle power plant operation with closed circuit of gas circulation |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2164465Y (en) * | 1993-08-30 | 1994-05-11 | 北京市西城区新开通用试验厂 | Numerical controlled gas turbine electricity heat, cold joint supply equipment |
| EP2180165A2 (en) * | 2008-10-24 | 2010-04-28 | General Electric Company | A system and method for changing the efficiency of a combustion turbine |
| CN202643715U (en) * | 2012-07-03 | 2013-01-02 | 武汉钢铁(集团)公司 | Gas steam combined cycle power generation process waste heat utilization system |
| CN102900531A (en) * | 2012-10-23 | 2013-01-30 | 中国船舶重工集团公司第七�三研究所 | Combustion gas turbine system with inlet cooling and indirect cooling |
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Effective date of registration: 20180930 Address after: 401120 9 Honghu East Road, Yubei District, Chongqing 705 Patentee after: Chongqing energy control power equipment Co., Ltd. Address before: 400030 Sha Zheng street, Shapingba District, Chongqing City, No. 174 Patentee before: Chongqing University |
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Address after: 401211 No.9, Honghu East Road, Yubei District, Chongqing 705 Patentee after: Chongqing energy control Power Technology Co., Ltd Address before: 401120 9 Honghu East Road, Yubei District, Chongqing 705 Patentee before: Chongqing energy control power equipment Co., Ltd. |