KR100254273B1 - Heat annexation generating system with gas turbine - Google Patents

Heat annexation generating system with gas turbine Download PDF

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Publication number
KR100254273B1
KR100254273B1 KR1019970074475A KR19970074475A KR100254273B1 KR 100254273 B1 KR100254273 B1 KR 100254273B1 KR 1019970074475 A KR1019970074475 A KR 1019970074475A KR 19970074475 A KR19970074475 A KR 19970074475A KR 100254273 B1 KR100254273 B1 KR 100254273B1
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South Korea
Prior art keywords
turbine
heat exchanger
steam boiler
air
gas
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KR1019970074475A
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Korean (ko)
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KR19990054615A (en
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신종섭
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유무성
삼성항공산업주식회사
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    • 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
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/057—Control or regulation
    • 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
    • F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/26—Control of fuel supply
    • 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]

Abstract

PURPOSE: A gas turbine co-generating system is provided to generate a desired amount of steam in a steam boiler by mounting a by-pass control valve between a heat exchanger and a gas turbine engine for by-passing exhaust gas introduced into a heat exchanger to the steam boiler according to the change of heat energy required by the steam boiler. CONSTITUTION: A gas turbine co-generating system includes a compressor(120) for compressing introduced air, a turbine(130) connected to the compressor for converting the air of high pressure to the air of low pressure and converting the difference to work, a heat exchanger(150) connected to the turbine for supplying the air of high temperature to a combustion engine(140) which connects the heat exchanger to the turbine and mounted with a burner inside for burning injected fuel to supply air of high temperature and high pressure to the turbine, a steam boiler(160) connected to the heat exchanger for heating water supplied inside, and a by-pass control valve(170) mounted between the turbine and the heat exchanger for supplying the air to the steam boiler while controlling an amount of air passing the turbine.

Description

가스터어빈 열병합발전시스템Gas turbine cogeneration system

본 발명은 가스터어빈 열병합발전시스템에 관한 것으로, 열교환기를 사용하여 스팀난방과 발전을 하는 가스터어빈 열병합발전시스템에 관한 것이다.The present invention relates to a gas turbine cogeneration system, and relates to a gas turbine cogeneration system for heating and steam heating using a heat exchanger.

통상적으로, 가스터어빈 열병합발전시스템은 가스터어빈엔진을 이용한 발전시스템을 말하는데, 도 1에 종래의 가스터어빈 열병합발전시스템을 나타내었다.Typically, the gas turbine cogeneration system refers to a power generation system using a gas turbine engine, and FIG. 1 shows a conventional gas turbine cogeneration system.

상기 가스터어빈 열병합발전시스템은 유입된 공기를 고압의 기체로 압축시키는 압축기(20)를 구비한다. 압축기(20)의 출구에는 압축기(20)와 인접되게 설치된 터어빈(30)의 입구가 연결되며 터어빈(30)의 출구는 터어빈(30)에 인접되게 설치된 열교환기(50)의 입구와 연결된다. 상기 열교환기(50)의 출구는 상기 열교환기(50)의 부근에 마련된 스팀보일러(60)와 연결된다. 또한, 상기 터어빈(30)은 상기 열교환기(50)와 별도의 도관을 통해 직접 연결되고, 상기 터어빈(30)과 열교환기(50)도 별도의 도관을 통해 연결되며 그 사이에 연소기(40)가 개재된다. 상기 스팀보일러(60)내에는 물펌프(61)로부터 연장된 도관이 내장된다.The gas turbine cogeneration system includes a compressor 20 for compressing the introduced air into a high pressure gas. The inlet of the turbine 30 installed adjacent to the compressor 20 is connected to the outlet of the compressor 20, and the outlet of the turbine 30 is connected to the inlet of the heat exchanger 50 installed adjacent to the turbine 30. The outlet of the heat exchanger 50 is connected to the steam boiler 60 provided in the vicinity of the heat exchanger 50. In addition, the turbine 30 is directly connected to the heat exchanger 50 through a separate conduit, and the turbine 30 and the heat exchanger 50 are also connected through a separate conduit with a combustor 40 therebetween. Is interposed. The steam boiler 60 has a conduit extending from the water pump 61 is embedded.

상기한 가스터어빈 열병합발전시스템에 의하면, 발전기(10)와 연결된 압축기(20)에 공기가 유입되면 고압의 기체로 압축되고 압축된 공기는 터어빈(30)으로 유입된다. 터어빈(30)에 유입된 고압의 기체는 저압의 기체로 변환되고 변환된 기체의 압력차 만큼의 일을 외부에 하게 된다. 터어빈(30)으로부터 유출된 공기는 열교환기(50)를 거치면서 다시 저온의 상태로 압축되는데, 일부는 연소기(40)로 유입되고, 나머지는 스팀보일러(60)로 들어가게 된다. 이때, 연소기(40)는 그 내부에 장착된 버어너에 의해 유입된 기체를 고온의 기체로 만들어 상기 터어빈(30)에 공급해준다. 상기 스팀보일러는 그 내부에 장착된 도관내의 물을 데우게 된다. 데워진 물에 의해 발생된 스팀은 상기 발전기(10)를 가동시키게 된다.According to the gas turbine cogeneration system, when air flows into the compressor 20 connected to the generator 10, the gas is compressed into a high-pressure gas and the compressed air flows into the turbine 30. The high pressure gas introduced into the turbine 30 is converted into a low pressure gas, and the work as much as the pressure difference of the converted gas is performed to the outside. The air flowing out of the turbine 30 is compressed again to a low temperature while passing through the heat exchanger 50, and part of the air flows into the combustor 40, and the rest of the air enters the steam boiler 60. At this time, the combustor 40 makes the gas introduced by the burner mounted therein into a high temperature gas and supplies it to the turbine 30. The steam boiler heats the water in the conduit mounted therein. The steam generated by the warmed water causes the generator 10 to operate.

그러나, 상기한 가스터어빈 열병합발전시스템은 열교환기의 출구온도가 낮아서 충분한 에너지를 확보하지 못하므로 스팀보일러의 효율이 저하되는 문제점이 있다. 또한, 스팀보일러에서 필요로 하는 에너지에 따라 가변적으로 에너지의 양을 변화시키지 못하는 문제점이 있다.However, the gas turbine cogeneration system has a problem that the efficiency of the steam boiler is lowered because the outlet temperature of the heat exchanger is not secured enough energy. In addition, there is a problem that does not vary the amount of energy in accordance with the energy required by the steam boiler.

본 발명은 상기 문제점을 해결하기 위하여 창출된 것으로서, 열교환기 출구온도를 높혀 충분한 배기가스를 확보할 수 있고, 사용목적에 따라 스팀보일러에서 필요로 하는 에너지의 양에 대응되도록 조절이 가능한 가스터어빈 열병합발전시스템을 제공함에 그 목적이 있다.The present invention was created to solve the above problems, by increasing the heat exchanger outlet temperature to ensure a sufficient exhaust gas, the gas turbine cogeneration can be adjusted to correspond to the amount of energy required by the steam boiler according to the purpose of use The purpose is to provide a power generation system.

도 1은 종래의 가스터어빈 열병합발전시스템을 개략적으로 도시한 도면이다.1 is a view schematically showing a conventional gas turbine cogeneration system.

도 2는 본 발명에 따른 가스터어빈 열병합발전시스템을 개략적으로 도시한 도면이다.2 is a view schematically showing a gas turbine cogeneration system according to the present invention.

< 도면의 주요 부분에 대한 부호 설명 ><Explanation of Signs of Major Parts of Drawings>

10, 110...발전기 20, 120...압축기10, 110 ... generators 20, 120 ... compressors

30, 130...터어빈 40, 140...연소기30, 130 ... turbine 40, 140 ... burner

50, 150...열교환기 60, 160...스팀보일러50, 150 ... heat exchanger 60, 160 ... steam boiler

61, 161...펌프 170...바이패스 조절밸브61, 161 ... pump 170 ... bypass control valve

상기 목적을 달성하기 위하여 본 발명은 유입된 공기를 압축시키는 압축기와, 상기 압축기와 연결되어 유입된 고압의 공기를 저압의 공기로 변환시키며 그 압력차 만큼을 일로 바꾸어주는 터어빈과, 상기 터어빈에 연결되어 연소기로 고온의 기체를 공급하는 열교환기와, 상기 열교환기와 터어빈을 연결시키며 내부에 버어너가 장착되어 주입된 연료를 연소시켜 고온고압의 기체를 터어빈에 공급하는 연소기와, 상기 열교환기와 연결되며 그 내부에 공급된 물을 가열시키는 스팀보일러와, 상기 터빈과 열교환기 사이에 설치되어 터어빈을 통과한 공기량을 조절하며 상기 스팀보일러로 공급시키는 바이패스(by-pass) 조절밸브를 포함하여 된 것을 특징으로 한다.In order to achieve the above object, the present invention provides a compressor for compressing the introduced air, a turbine connected with the compressor to convert the high pressure air introduced into low pressure air, and the pressure difference is changed to work, and connected to the turbine. A heat exchanger for supplying hot gas to the combustor, the heat exchanger is connected to the turbine, and a burner is mounted therein, and a burner is used to combust the injected fuel to supply a high temperature and high pressure gas to the turbine; A steam boiler for heating the water supplied therein, and a bypass control valve installed between the turbine and the heat exchanger to adjust the amount of air passing through the turbine and to supply the steam boiler to the steam boiler. It is done.

이하, 첨부된 도면을 참조하여 본 발명에 따른 가스터어빈 열병합발전시스템의 일 실시예를 상세히 설명한다. 도 2는 본 발명에 따른 가스터어빈 열병합발전시스템을 도시한 개략적인 도면이다.Hereinafter, an embodiment of a gas turbine cogeneration system according to the present invention will be described in detail with reference to the accompanying drawings. Figure 2 is a schematic diagram showing a gas turbine cogeneration system according to the present invention.

본 발명에 따른 가스터어빈 열병합발전시스템은 발전기(110)와 연결된 압축기(120)를 구비한다. 압축기(120)의 출구는 압축기의 후방에 마련된 열교환기(150)의 입구와 연결된다. 터어빈(130)의 출구는 터어빈의 후방에 위치한 열교환기(150)의 입구와 연결되며 열교환기(150)와 터어빈(130)사이에는 바이패스 조절밸브(170)가 연결된다. 상기 바이패스 조절밸브(170)는 별도의 도관으로 열교환기(150)의 후방에 연결되어 열교환기(150)의 후방에 열교환기의 출구와 연결되도록 마련된 스팀보일러(160)와 연결된다. 상기 열교환기(150)는 인접되게 설치된 연소기(140)와 별도의 도관으로 연결되며 연소기(140)의 출구는 터어빈(130)의 입구에 연결된다. 상기 스팀보일러(160)내에는 펌프와 연결된 도관이 그 내부에 장착된다. 스팀보일러(160)내부를 가로지르는 스팀도관은 발전기와 연결된다.The gas turbine cogeneration system according to the present invention includes a compressor 120 connected to a generator 110. The outlet of the compressor 120 is connected to the inlet of the heat exchanger 150 provided at the rear of the compressor. The outlet of the turbine 130 is connected to the inlet of the heat exchanger 150 located at the rear of the turbine, and the bypass control valve 170 is connected between the heat exchanger 150 and the turbine 130. The bypass control valve 170 is connected to the rear of the heat exchanger 150 by a separate conduit and is connected to the steam boiler 160 provided to be connected to the outlet of the heat exchanger at the rear of the heat exchanger 150. The heat exchanger 150 is connected to the adjacent combustor 140 is installed in a separate conduit, the outlet of the combustor 140 is connected to the inlet of the turbine 130. In the steam boiler 160, a conduit connected to the pump is mounted therein. The steam conduit across the steam boiler 160 is connected to the generator.

상기한 가스터어빈 열병합발전시스템에 의하면, 발전기(110)와 연결된 압축기(120)에 외부공기가 유입되고, 압축기(120)에 유입된 외부공기는 고압으로 압축되어 열교환기(150)로 유입된다. 터어빈(130)으로 유입된 고압의 기체는 저압의 기체로 바뀌고 그 압력차만큼을 외부에 일을 해준다. 터어빈(130)을 지난 저압의 기체는 열교환기(150)내로 유입되어 압축기로부터 들어온 고압공기를 가열된후, 저온의 기체가 되어 기체의 일부는 스팀보일러(160)로 유입된다. 열교환기에서 가열되어 연소기(140)로 보내어진 기체는 외부로부터 분사되는 연료와 혼합되어 연소기(140) 내부에 장착된 버어너에 의해 태워지며 고온고압의 기체로 되고, 이 고온고압의 기체는 터어빈(130)의 내부로 유입된다. 상기 열교환기(150)를 지난 저온저압의 기체는 스팀보일러(160)로 유입되어 데워지고 고온의 증기로 변환되어 난방에 사용되거나 발전기로 유입되어 발전의 역할을 하게 된다. 이때, 상기 터어빈(130)과 열교환기(150)사이에 설치된 바이패스 조절밸브(170)는 상기 터어빈(130)에서 나오는 기체의 일부를 열교환기에 통과시키지 않고 곧바로 스팀보일러(160)에 유입시키기 때문에 스팀보일러의 효율을 높여준다. 또한, 상기 바이패스 조절밸브(170)의 조작으로 상기 스팀보일러(160)에 유입되는 기체의 양을 조절할 수 있으므로 스팀보일러(160)에서 필요로 하는 양에 대응하여 기체를 공급할 수 있다.According to the gas turbine cogeneration system, external air flows into the compressor 120 connected to the generator 110, and external air introduced into the compressor 120 is compressed to high pressure and flows into the heat exchanger 150. The high pressure gas introduced into the turbine 130 is changed to a low pressure gas and works outside as much as the pressure difference. The low pressure gas passing through the turbine 130 is introduced into the heat exchanger 150 to heat the high pressure air from the compressor, and then a part of the gas is introduced into the steam boiler 160 by becoming a low temperature gas. The gas heated in the heat exchanger and sent to the combustor 140 is mixed with fuel injected from the outside and burned by a burner mounted inside the combustor 140 to become a gas of high temperature and high pressure, and the gas of the high temperature and high pressure is turbine Flows into the interior of the 130. The low-temperature low-pressure gas passing through the heat exchanger 150 is introduced into the steam boiler 160 to be heated and converted into high-temperature steam, which is used for heating or flows into a generator to serve as power generation. At this time, because the bypass control valve 170 installed between the turbine 130 and the heat exchanger 150 does not pass a portion of the gas from the turbine 130 to the heat exchanger immediately flows into the steam boiler 160. Increase the efficiency of steam boiler. In addition, since the amount of gas introduced into the steam boiler 160 may be adjusted by the operation of the bypass control valve 170, the gas may be supplied corresponding to the amount required by the steam boiler 160.

본 발명에 따른 가스터어빈 열병합발전시스템에 의하면, 열교환기와 가스터어빈엔진의 가스터어빈 사이에 바이패스 조절밸브를 장착하여 스팀보일러가 요구하는 열에너지량의 변화에 따라 열교환기로 들어오는 배기가스의 양을 스팀보일러로 바이패스 시킴으로써 스팀보일러에서 원하는 양의 스팀을 발생시키고 일정한 양의 발전량을 유지하기 위해 가스터어빈 연소기로 공급되는 연료량을 조절시킬 수 있는 이점이 있다.According to the gas turbine cogeneration system according to the present invention, by installing a bypass control valve between the heat exchanger and the gas turbine of the gas turbine engine, the amount of exhaust gas entering the heat exchanger according to the change of the amount of heat energy required by the steam boiler is steam boiler. By-passing has the advantage of controlling the amount of fuel supplied to the gas turbine combustor to generate the desired amount of steam in the steam boiler and to maintain a constant amount of power generation.

본 발명은 도면에 도시된 일 실시예를 참고로 설명되었으나, 이는 예시적인 것에 불과하며, 당해 분야에서 통상적 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호 범위는 첨부된 특허 청구범위에 한해서 정해져야 할 것이다.Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

Claims (1)

유입된 공기를 압축시키는 압축기와,A compressor for compressing the introduced air, 상기 압축기와 연결되어 유입된 고압의 공기를 저압의 공기로 변환시키며 그 압력차 만큼을 일로 바꾸어주는 터어빈과,A turbine connected to the compressor to convert the high pressure air introduced into the low pressure air and change the pressure difference to work; 상기 터어빈에 연결되어 연소기로 고온의 기체를 공급하는 열교환기와,A heat exchanger connected to the turbine for supplying hot gas to the combustor; 상기 열교환기와 터어빈을 연결시키며 내부에 버어너가 장착되어 주입된 연료를 연소시켜 고온고압의 기체를 터어빈에 공급하는 연소기와,A combustor which connects the heat exchanger and the turbine and burns the injected fuel therein to supply the gas of a high temperature and high pressure to the turbine; 상기 열교환기와 연결되며 그 내부에 공급된 물을 가열시키는 스팀보일러와, 상기 터빈과 열교환기 사이에 설치되어 터어빈을 통과한 공기량을 조절하며 상기 스팀보일러로 공급시키는 바이패스(by-pass) 조절밸브를 포함하여 된 것을 특징으로 하는 가스터어빈 열병합발전시스템.A steam boiler connected to the heat exchanger and heating the water supplied therein, and a bypass control valve installed between the turbine and the heat exchanger to control the amount of air passing through the turbine and supply the steam boiler to the steam boiler. Gas turbine cogeneration system characterized in that it comprises a.
KR1019970074475A 1997-12-26 1997-12-26 Heat annexation generating system with gas turbine KR100254273B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130118168A (en) 2012-04-19 2013-10-29 삼성테크윈 주식회사 Combined heat and power system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130118168A (en) 2012-04-19 2013-10-29 삼성테크윈 주식회사 Combined heat and power system

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