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KR20110036289A - Compact cogeneration system - Google Patents

Compact cogeneration system Download PDF

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Publication number
KR20110036289A
KR20110036289A KR1020090093866A KR20090093866A KR20110036289A KR 20110036289 A KR20110036289 A KR 20110036289A KR 1020090093866 A KR1020090093866 A KR 1020090093866A KR 20090093866 A KR20090093866 A KR 20090093866A KR 20110036289 A KR20110036289 A KR 20110036289A
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South Korea
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heat exchanger
heat
hot water
heating
cogeneration
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KR1020090093866A
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Korean (ko)
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민태식
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주식회사 경동나비엔
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Priority to KR1020090093866A priority Critical patent/KR20110036289A/en
Priority to PCT/KR2010/006089 priority patent/WO2011040713A2/en
Publication of KR20110036289A publication Critical patent/KR20110036289A/en
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D10/00—District heating systems
    • F24D10/003—Domestic delivery stations having a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K19/00—Arrangements of valves and flow lines specially adapted for mixing fluids
    • F16K19/003—Specially adapted for boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D12/00—Other central heating systems
    • F24D12/02—Other central heating systems having more than one heat source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/13—Heat from a district heating network
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/32—Heat sources or energy sources involving multiple heat sources in combination or as alternative heat sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/02—Fluid distribution means
    • F24D2220/0235—Three-way-valves
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Water Supply & Treatment (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

본 발명은 열병합발전기와 보일러의 열매체 유로를 연결함으로써 열병합발전기에서 회수된 열을 난방과 온수에 모두 이용할 수 있고, 시스템을 단순화시켜 설치비용을 감소시킬 수 있으며, 난방 및 온수모드시 공급되는 열량제어가 용이한 소형 열병합 발전 시스템을 제공하고자 함에 그 목적이 있다.According to the present invention, the heat recovered from the cogeneration generator can be used for both heating and hot water by connecting the cogeneration generator and the heat medium path of the boiler, and the installation cost can be reduced by simplifying the system. The aim is to provide an easy and compact cogeneration system.

이를 구현하기 위한 본 발명은, 전기의 발전시 생성된 폐열을 회수하기 위해 열교환기(110)를 구비한 열병합발전기(100); 상기 열교환기(110)에서 열을 흡수한 열매체를, 난방소요처와 온수공급을 위해 직수와의 열교환이 이루어지는 급탕열교환기(230) 중 어느 하나로 선택적으로 흐르게 한 후, 상기 열병합발전기(100)의 열교환기(110)로 순환시키는 보일러(200)로 이루어진다.The present invention for implementing this, the cogeneration generator (100) having a heat exchanger (110) to recover the waste heat generated during the generation of electricity; The heat medium that absorbs heat in the heat exchanger 110 is selectively flowed into any one of the hot water supply heat exchanger 230 in which heat is exchanged with direct water for heating requirements and hot water supply, and then the cogeneration generator 100 It consists of a boiler 200 that circulates through the heat exchanger 110.

Description

소형 열병합 발전 시스템{Compact cogeneration system}Compact cogeneration system

본 발명은 소형 열병합 발전 시스템에 관한 것으로, 보다 상세하게는 열병합발전기에서 생성된 폐열을 난방과 온수 모두에 이용할 수 있는 소형 열병합 발전 시스템에 관한 것이다.The present invention relates to a small cogeneration system, and more particularly to a small cogeneration system that can use the waste heat generated by the cogeneration generator for both heating and hot water.

소형 열병합발전(CHP;Combined Heat & Power)이란 내연기관, 가스터빈, 연료전지, 스털링엔진 등 각종 원동기에 의해 연료가 가진 화학에너지를 전기에너지로 변환 생산하고 이때에 수반되는 폐열을 유효하게 활용하는 종합에너지시스템이다.Combined Heat & Power (CHP) is a technology that converts and produces chemical energy of fuel into electrical energy by using various prime movers such as internal combustion engines, gas turbines, fuel cells, and sterling engines, and effectively utilizes the waste heat. It is a comprehensive energy system.

이러한 발전방식은 기존의 발전방식에 비하여 2배 이상 에너지 이용효율을 향상시킬 수 있는 고효율 에너지기술임과 동시에 지구온난화에 기여도가 가장 높은 CO의 배출량을 획기적으로 줄일 수 있는 친환경기술이기 때문에 각국에서 그의 도입을 활발히 추진하고 있다.This is a high-efficiency energy technology that can improve energy use efficiency more than twice compared to the existing power generation method, and it is an eco-friendly technology that can drastically reduce the emission of CO, which contributes the most to global warming. It is actively promoting the introduction.

이러한 소형 열병합발전 시스템의 하나로 대한민국 등록특허 제713620호가 제시되어 있다.Korean Patent No. 713620 is presented as one of such compact cogeneration systems.

도 1은 종래의 열병합발전과 개별난방 통합시스템을 개략적으로 보여주는 구성도로서, 특허 제713620호에 개시되어 있다.1 is a schematic view showing a conventional cogeneration and individual heating integration system, which is disclosed in Patent No. 713620.

종래의 열병합발전과 개별난방 통합시스템은, 가스를 공급받아 전기를 생산하는 열병합발전기(10)와, 내부에는 냉각수가 유동하면서 열병합발전기(10)의 폐열을 회수하는 폐열회수관(40)과, 하부 일측에 연결된 급수구(31)를 통해 급탕수가 공급되는 폐쇄된 형상의 급탕탱크(30)와, 급탕탱크(30)의 하부 측방에 연결되어 급탕탱크(30) 내부에 채워진 물을 순환시키면서 열교환기(20)를 통해 폐열회수관(40)으로부터 열을 전달받아 급탕탱크(30) 내부에 열을 축적해주는 급탕가열관(90)과, 급탕탱크(30)의 상단부에 연결되어 급수구(31)를 통해 급탕수가 급탕탱크(30) 내부로 공급되면 그 압력에 의해 급탕수를 배출하는 급탕공급관(32)과, 상기 급탕공급관(32)을 통해 공급된 급탕수를 가열하여 급탕관(50)을 통해 수도밸브(60)로 배출하는 개별보일러(70)와, 상기 급탕공급관(32)과 급탕관(50)의 사이에 연결되는 분지관(80)과, 상기 급탕공급관(32)의 분지관과 개별보일러 사이에 위치되어 급탕수의 공급을 단속하는 단속밸브(33), 상기 급탕관(50) 상에 위치된 단속밸브(51), 상기 분지관(80) 상에 위치된 임의의 위치된 단속밸브(81)로 구성된 것이다.Conventional cogeneration and individual heating integrated system, the cogeneration generator 10 is supplied with gas to produce electricity, the waste heat recovery pipe 40 for recovering the waste heat of the cogeneration generator 10 while the coolant flows therein, The hot water supply tank 30 of the closed shape is supplied through the water supply port 31 connected to the lower side and the heat exchange while connected to the lower side of the hot water tank 30 while circulating the water filled in the hot water tank 30 The hot water heating tube 90 which receives heat from the waste heat recovery pipe 40 through the air 20 and accumulates heat in the hot water tank 30, and is connected to the upper end of the hot water tank 30. When the hot water is supplied into the hot water supply tank 30 through the hot water supply pipe 32 for discharging the hot water by the pressure, and the hot water supply water supplied through the hot water supply pipe 32 to heat the hot water supply pipe 50. Individual boiler 70 and the hot water supply hole discharged to the water valve 60 through the An intermittent valve (33) interposed between the branch pipe (80) connected between the pipe (32) and the hot water supply pipe (50), and the branch pipe of the hot water supply pipe (32) and the individual boiler to regulate the supply of hot water. It is composed of an intermittent valve 51 located on the hot water supply pipe 50, an arbitrary intermittent valve 81 located on the branch pipe 80.

상기와 같은 종래의 열병합발전 시스템은 열병합발전기(10)에서 회수된 폐열을 급탕수 즉, 온수를 공급하는 온수운전시에만 사용할 수 있고, 난방운전시에는 이용할 수 없는 문제점이 있다. The conventional cogeneration system as described above may use only the waste heat recovered by the cogeneration system 10 during hot water operation for supplying hot water, that is, hot water, and may not be used during heating operation.

또한 열병합발전기(10)에서 폐열을 회수하기 위해 폐열회수관(40) 내부를 순환하는 냉각수가 필요하고, 상기 냉각수로부터 열을 흡수하기 위한 열교환기(20) 및 급탕탱크(30) 내부의 물을 순환시키기 위한 급탕가열관(90) 및 순환펌프를 추가로 구비해야 하므로, 전체적인 구조가 복잡하여 설치비용을 증가시키는 요인이 된 다.In addition, the cooling water circulating in the waste heat recovery pipe 40 is required to recover the waste heat from the cogeneration system 10, and the water inside the heat exchanger 20 and the hot water supply tank 30 for absorbing heat from the cooling water. Since the hot water heating pipe 90 and the circulation pump to circulate additionally need to be provided, the overall structure becomes a factor that increases the installation cost.

또한 열병합발전기(10)와 개별보일러(70)는 시스템 상으로 서로 분리되어 있어, 온수 또는 난방에 상기 폐열을 이용하는 경우 열량을 정교하게 제어할 수 없는 문제점이 있다.In addition, the cogeneration unit 10 and the individual boiler 70 are separated from each other on the system, there is a problem that can not precisely control the amount of heat when using the waste heat for hot water or heating.

본 발명은 상술한 제반 문제점을 해결하고자 안출된 것으로, 열병합발전기와 보일러의 열매체 유로를 연결함으로써 열병합발전기에서 회수된 열을 난방과 온수에 모두 이용할 수 있고, 열매체의 열을 축열하는 급탕탱크를 제거함으로써 시스템을 단순화시켜 설치비용을 감소시킬 수 있으며, 난방 및 온수모드시 공급되는 열량제어가 용이한 소형 열병합 발전 시스템을 제공하고자 함에 그 목적이 있다.The present invention has been made to solve the above-mentioned problems, by connecting the cogeneration generator and the heat medium flow path of the boiler, the heat recovered from the cogeneration generator can be used for both heating and hot water, eliminating the hot water tank to accumulate heat of the heat medium It is possible to reduce installation costs by simplifying the system, and to provide a small cogeneration system that can easily control the amount of heat supplied in heating and hot water modes.

상기 목적을 달성하기 위한 본 발명의 소형 열병합 발전시스템은, 전기의 발전시 생성된 폐열을 회수하기 위해 열교환기(110)를 구비한 열병합발전기(100); 상기 열교환기(110)에서 열을 흡수한 열매체를, 난방소요처와 온수공급을 위해 직수와의 열교환이 이루어지는 급탕열교환기(230) 중 어느 하나로 선택적으로 흐르게 한 후, 상기 열병합발전기(100)의 열교환기(110)로 순환시키는 보일러(200)로 이루어진다.Small cogeneration system of the present invention for achieving the above object, the cogeneration generator (100) having a heat exchanger (110) to recover the waste heat generated during the generation of electricity; The heat medium that absorbs heat in the heat exchanger 110 is selectively flowed into any one of the hot water supply heat exchanger 230 in which heat is exchanged with direct water for heating requirements and hot water supply, and then the cogeneration generator 100 It consists of a boiler 200 that circulates through the heat exchanger 110.

본 발명에 의하면, 열병합발전기와 보일러의 열매체 유로를 일체로 연결하고 열매체의 열을 축열하는 급탕탱크를 제거함으로써 시스템 구성을 간단히 하면서도 열병합발전기에서 회수된 폐열을 난방과 온수에 모두 이용할 수 있는 장점이 있다. According to the present invention, it is possible to use the waste heat recovered from the cogeneration generator for both heating and hot water while simplifying the system configuration by connecting the cogeneration generator and the heating medium passage of the boiler integrally and removing the hot water tank to accumulate heat of the heating medium. have.

또한 열병합발전기와 보일러의 열매체 유로를 일체로 연결함으로써 난방 또는 온수에 공급하는 열량을 정교하게 제어할 수 있는 장점이 있다.In addition, there is an advantage that can precisely control the amount of heat supplied to the heating or hot water by connecting the cogeneration unit and the heat medium flow path of the boiler integrally.

이하 첨부한 도면을 참조하여 본 발명의 바람직한 실시예에 대한 구성 및 작용을 상세히 설명하면 다음과 같다.Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 일실시예에 의한 소형 열병합 발전시스템을 개략적으로 보여주는 도면이다.2 is a view schematically showing a compact cogeneration system according to an embodiment of the present invention.

본 발명에 의한 열병합 발전시스템은, 전기의 발전시 생성된 폐열을 회수하는 열병합발전기(100), 상기 열병합발전기(100)로부터 공급된 열매체를, 난방소요처와 온수공급을 위해 직수와의 열교환이 이루어지는 급탕열교환기(230) 중 어느 하나로 선택적으로 흐르게 한 후 상기 열병합발전기(100)의 열교환기(110)로 순환시키는 보일러(200)로 구성된다.In the cogeneration system according to the present invention, the cogeneration generator (100) for recovering waste heat generated during the generation of electricity, and the heat medium supplied from the cogeneration generator (100), are heat exchanged with direct water for heating requirements and hot water supply. It consists of a boiler 200 to selectively flow to any one of the hot water supply heat exchanger 230 is made to circulate to the heat exchanger 110 of the cogeneration generator (100).

여기서 열매체는 난방수인 물을 지칭한다.Here, the heat medium refers to water that is heating water.

상기 열병합발전기(100)는, 일례로, 터빈(도면에 미도시)에 의해 구동되어 전기를 발생시킴과 동시에 상기 터빈에 의해 발생된 폐열을 회수하는 장치이다. 상기 폐열을 회수하기 위해 열병합발전기(100)에는 열교환기(110)가 구비되어 있다. 상기 열교환기(110)에서는 상기 폐열을 회수하기 위해 열매체가 내부를 흐르도록 되어 있고, 이 열매체는 상기 보일러(200)를 순환한다.The cogeneration generator 100 is, for example, a device that is driven by a turbine (not shown in the figure) to generate electricity and to recover waste heat generated by the turbine. In order to recover the waste heat, the cogeneration generator (100) is provided with a heat exchanger (110). In the heat exchanger 110, a heat medium flows inside to recover the waste heat, and the heat medium circulates through the boiler 200.

상기 보일러(200)에는, 연소열을 발생시키는 버너(도면에 미도시), 상기 버너에서 발생된 연소열과 상기 열교환기(110)로부터 공급되어 온 열매체 사이에 열교환이 이루어지는 주열교환기(210), 상기 주열교환기(210)로부터 공급되어 온 열 매체를 난방소요처와 상기 급탕열교환기(230) 중 어느 하나로 선택적으로 순환시키기 위한 삼방밸브(220), 온수모드시 상기 삼방밸브(220)를 통과한 열매체와 직수와의 사이에 열교환이 이루어지는 급탕열교환기(230), 상기 열매체를 순환시키기 위해 상기 열병합발전기(100)의 열교환기(110)와 출구측이 연결된 순환펌프(240)가 구비되어 있다.The boiler 200 includes a burner (not shown in the drawing) that generates combustion heat, a main heat exchanger 210 in which heat is exchanged between the combustion heat generated in the burner and the heat medium supplied from the heat exchanger 110, and the main heat. Three-way valve 220 for selectively circulating the heat medium supplied from the exchanger 210 to any one of the heating source and the hot water supply heat exchanger 230, and the heat medium passing through the three-way valve 220 in the hot water mode; Hot water heat exchanger 230 is a heat exchange between the direct water, the circulation pump 240 is connected to the heat exchanger 110 and the outlet side of the cogeneration generator 100 to circulate the heat medium.

상기 급탕열교환기(230)에는 직수가 유입되고, 상기 직수는 상기 삼방밸브(220)를 통과한 열매체와의 사이에 열교환이 이루어져 온수가 된 후 온수소요처로 공급된다.Direct water flows into the hot water supply heat exchanger (230), and the direct water is heat exchanged between the heat medium passing through the three-way valve (220) to become hot water, and then supplied to a hot water source.

상기 급탕열교환기(230)의 열매체 출구 측은 난방환수관과 연결되어 있다.The heat medium outlet side of the hot water supply heat exchanger 230 is connected to the heating return pipe.

상기 난방소요처를 순환한 후 온도가 하락된 난방환수는 난방환수관을 경유하여 상기 난방환수관에 연결된 순환펌프(240)로 공급된다.After circulating the heating requirements, the heating return having a lowered temperature is supplied to the circulation pump 240 connected to the heating return pipe via the heating return pipe.

이와 같은 구조에 의하면, 열병합발전기(100)의 열교환기(110)와 보일러(200)의 난방수 순환회로가 서로 연결되어 있어 시스템을 매우 간단하게 구성할 수 있다.According to such a structure, since the heat exchanger 110 of the cogeneration generator 100 and the heating water circulation circuit of the boiler 200 are connected to each other, the system can be configured very simply.

또한 열병합발전기(100)의 열교환기(110)를 통과하면서 폐열을 흡수한 열매체는 난방소요처 측으로 공급될 수도 있고, 급탕열교환기(230) 측으로 공급될 수도 있어, 폐열을 난방과 온수에 모두 이용할 수 있다.In addition, the heat medium absorbing the waste heat while passing through the heat exchanger 110 of the cogeneration generator 100 may be supplied to the heating source, or may be supplied to the hot water supply heat exchanger 230, so that the waste heat is used for both heating and hot water. Can be.

또한 종래의 급탕탱크에 대응되는 구성을 제거함으로써 시스템을 매우 간단하게 구성할 수 있다.In addition, the system can be configured very simply by removing the configuration corresponding to the conventional hot water supply tank.

이하 본 발명의 작용을 도 3과 도 4를 참조하여 설명한다.Hereinafter, the operation of the present invention will be described with reference to FIGS. 3 and 4.

도 3은 난방모드시 본 발명의 열병합 발전시스템에서 열매체가 순환하는 경로를 보여주는 도면이다.3 is a view showing a path in which the heat medium circulates in the cogeneration system of the present invention in the heating mode.

난방모드가 되면, 보일러(200)가 가동되어 버너(도면에 미도시)에서 연소가 일어나며, 삼방밸브(220)는 급탕열교환기(230) 측으로 열매체 흐름이 차단되고 난방소요처 측으로 열매체가 흐르도록 설정된다.When the heating mode, the boiler 200 is operated to burn in the burner (not shown in the drawing), the three-way valve 220 is blocked by the heating medium flow to the hot water heat exchanger 230 side and the heating medium flows to the heating source side. Is set.

순환펌프(240)가 구동되면, 열매체는 순환펌프(240)로부터 열병합발전기(100)의 열교환기(110) 내부로 유입된다.When the circulation pump 240 is driven, the heat medium flows into the heat exchanger 110 of the cogeneration generator 100 from the circulation pump 240.

이 경우 열병합발전기(100)는 가동이 정지되어 있을 수도 있고, 전기를 생산하기 위해 가동되어 발생된 폐열에 의해 열교환기(110)를 통과하는 열매체에 열에너지를 전달할 수도 있다.In this case, the cogeneration generator 100 may be stopped or may transfer heat energy to the heat medium passing through the heat exchanger 110 by waste heat generated by being operated to produce electricity.

상기 열교환기(110)를 통과한 열매체는 주열교환기(210)를 경유하면서 버너(도면에 미도시)의 연소열에 의해 가열된 후 삼방밸브(220)로 공급된다.The heat medium passing through the heat exchanger 110 is heated by the combustion heat of a burner (not shown) via the main heat exchanger 210 and then supplied to the three-way valve 220.

상기 삼방밸브(220)에서는 난방소요처 측으로 밸브가 개방되어 있으므로, 열매체는 난방공급수로서 난방소요처를 통과하면서 온도가 하락한 후 난방환수가 되어 순환펌프(240)로 흐른다.In the three-way valve 220, since the valve is opened to the heating source side, the heat medium passes through the heating element as the heating supply water, and then the temperature decreases and the heating return flows to the circulation pump 240.

이후 난방모드에서는 상기한 과정을 반복하여 열매체는 순환하고, 이렇게 연결된 폐회로는 난방유로를 형성한다.Thereafter, in the heating mode, the heating medium is circulated by repeating the above process, and the connected closed circuit forms the heating flow path.

도 4는 온수모드시 본 발명의 열병합 발전시스템에서 열매체가 순환하는 경로를 보여주는 도면이다.4 is a view showing a path in which the heat medium circulates in the cogeneration system of the present invention in the hot water mode.

온수모드가 되면, 보일러(200)가 가동되어 버너(도면에 미도시)에서 연소가 일어나며, 삼방밸브(220)는 난방소요처 측으로 열매체 흐름이 차단되고 급탕열교환기(230) 측으로 열매체가 흐르도록 설정된다.When the hot water mode is activated, the boiler 200 is operated and combustion occurs in a burner (not shown in the drawing), and the three-way valve 220 blocks the heat medium flow to the heating source side and the heat medium flows to the hot water heat exchanger 230. Is set.

순환펌프(240)가 구동되면, 열매체는 순환펌프(240)로부터 열병합발전기(100)의 열교환기(110) 내부로 유입된다.When the circulation pump 240 is driven, the heat medium flows into the heat exchanger 110 of the cogeneration generator 100 from the circulation pump 240.

이 경우 열병합발전기(100)는 가동이 정지되어 있을 수도 있고, 전기를 생산하기 위해 가동되어 발생된 폐열에 의해 열교환기(110)를 통과하는 열매체에 열에너지를 전달할 수도 있다.In this case, the cogeneration generator 100 may be stopped or may transfer heat energy to the heat medium passing through the heat exchanger 110 by waste heat generated by being operated to produce electricity.

상기 열교환기(110)를 통과한 열매체는 주열교환기(210)로 유입되어 버너(도면에 미도시)의 연소열에 의해 가열된 후 삼방밸브(220)로 공급된다.The heat medium passing through the heat exchanger 110 flows into the main heat exchanger 210 and is heated by the combustion heat of a burner (not shown) and then supplied to the three-way valve 220.

상기 삼방밸브(220)에서는 급탕열교환기(230) 측으로 밸브가 개방되어 있으므로, 열매체는 급탕열교환기(230)를 통과하면서 직수와의 열교환에 의해 온도가 하락한 후 순환펌프(240)로 흐른다.In the three-way valve 220, since the valve is opened toward the hot water heat exchanger 230, the heat medium passes through the hot water heat exchanger 230, and then flows to the circulation pump 240 after the temperature decreases due to heat exchange with direct water.

이후 온수모드에서는 상기한 과정을 반복하여 열매체는 순환하고, 이렇게 연결된 폐회로는 온수유로를 형성한다.Thereafter, in the hot water mode, the heat medium is circulated by repeating the above process, and the connected closed circuit forms the hot water flow path.

이와 같이 열병합발전기(100)와 보일러(200)의 열매체 유로를 일체로 연결하면 보일러(200)의 열량 제어 시스템을 이용할 수 있어 난방 및 온수 공급에 필요한 열량을 정교하게 제어할 수 있다.As such, when the cogeneration generator 100 and the heat medium flow path of the boiler 200 are integrally connected, the calorie control system of the boiler 200 may be used to precisely control the amount of heat required for heating and hot water supply.

도 1은 종래의 열병합발전과 개별난방 통합시스템을 개략적으로 보여주는 구성도,1 is a schematic view showing a conventional cogeneration and individual heating integration system,

도 2는 본 발명의 일실시예에 의한 소형 열병합 발전시스템을 개략적으로 보여주는 도면,2 is a view schematically showing a compact cogeneration system according to an embodiment of the present invention;

도 3은 난방모드시 본 발명의 열병합 발전시스템에서 열매체가 순환하는 경로를 보여주는 도면,3 is a view showing a path in which the heat medium circulates in the cogeneration system of the present invention in the heating mode;

도 4는 온수모드시 본 발명의 열병합 발전시스템에서 열매체가 순환하는 경로를 보여주는 도면.4 is a view showing a path in which the heat medium circulates in the cogeneration system of the present invention in the hot water mode.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

100 : 열병합발전기 110 : 열교환기100: cogeneration generator 110: heat exchanger

200 : 보일러 210 : 주열교환기200: boiler 210: main heat exchanger

220 : 삼방밸브 230 : 급탕열교환기220: three-way valve 230: hot water supply heat exchanger

240 : 순환펌프240: circulation pump

Claims (4)

전기의 발전시 생성된 폐열을 회수하기 위해 열교환기(110)를 구비한 열병합발전기(100);A cogeneration generator (100) having a heat exchanger (110) for recovering waste heat generated during generation of electricity; 상기 열교환기(110)에서 열을 흡수한 열매체를, 난방소요처와 온수공급을 위해 직수와의 열교환이 이루어지는 급탕열교환기(230) 중 어느 하나로 선택적으로 흐르게 한 후, 상기 열병합발전기(100)의 열교환기(110)로 순환시키는 보일러(200);The heat medium that absorbs heat in the heat exchanger 110 is selectively flowed into any one of the hot water supply heat exchanger 230 in which heat is exchanged with direct water for heating requirements and hot water supply, and then the cogeneration generator 100 A boiler 200 circulating to the heat exchanger 110; 로 이루어진 소형 열병합 발전시스템.Small cogeneration system consisting of. 제1항에 있어서,The method of claim 1, 상기 보일러(200) 내부의 순환펌프(240)와 상기 보일러(200) 내부의 주열교환기(210) 사이에 상기 열병합발전기(100)의 열교환기(110)가 연결된 것을 특징으로 하는 소형 열병합 발전시스템.Compact cogeneration system, characterized in that the heat exchanger 110 of the cogeneration generator 100 is connected between the circulation pump 240 in the boiler 200 and the main heat exchanger 210 in the boiler 200. 제2항에 있어서,The method of claim 2, 난방모드시, 상기 열병합발전기(100)의 열교환기(110), 상기 보일러(200) 내부에 설치된 주열교환기(210), 상기 주열교환기(210)로부터 공급되어 온 열매체를 상기 난방소요처 및 상기 급탕열교환기(230) 중 어느 하나로 선택적으로 공급하는 삼방밸브(220), 상기 삼방밸브(220)와 연결된 난방소요처, 상기 열매체를 순환시키기 위한 순환펌프(240)가 순차로 연결되어 난방유로를 형성하는 것을 특징으로 하는 소형 열병합 발전시스템.In the heating mode, the heat exchanger 110 of the cogeneration generator 100, the main heat exchanger 210 installed in the boiler 200, and the heat medium supplied from the main heat exchanger 210 are supplied to the heating requirements and the hot water supply. Three-way valve 220 to selectively supply to any one of the heat exchanger 230, the heating requirements connected to the three-way valve 220, the circulation pump 240 for circulating the heat medium is sequentially connected to form a heating flow path Small cogeneration system characterized in that. 제2항에 있어서,The method of claim 2, 온수모드시, 상기 열병합발전기(100)의 열교환기(110), 상기 보일러(200) 내부에 설치된 주열교환기(210), 상기 주열교환기(210)로부터 공급되어 온 열매체를 상기 난방소요처 및 상기 급탕열교환기(230) 중 어느 하나로 선택적으로 공급하는 삼방밸브(220), 일측이 상기 삼방밸브(220)와 연결되고 타측이 난방환수관에 연결된 급탕열교환기(230), 상기 열매체를 순환시키기 위한 순환펌프(240)가 순차로 연결되어 온수유로를 형성하는 것을 특징으로 하는 소형 열병합 발전시스템.In the hot water mode, the heat medium supplied from the heat exchanger 110, the main heat exchanger 210 installed in the boiler 200, and the main heat exchanger 210 of the cogeneration generator 100 is heated and the hot water supply. Three-way valve 220 to selectively supply to any one of the heat exchanger 230, the hot water supply heat exchanger 230, one side is connected to the three-way valve 220 and the other side is connected to the heating return pipe, circulation for circulating the heat medium Compact cogeneration system characterized in that the pump 240 is connected in sequence to form a hot water flow path.
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Publication number Priority date Publication date Assignee Title
WO2013165106A1 (en) * 2012-05-03 2013-11-07 주식회사 경동나비엔 Boiler having increased indoor heating efficiency and enabling simultaneous use of indoor heating and hot water
CN104272030A (en) * 2012-05-03 2015-01-07 庆东纳碧安株式会社 Boiler having increased indoor heating efficiency and enabling simultaneous use of indoor heating and hot water
US9869490B2 (en) 2012-05-03 2018-01-16 Kyungdong Navien Co., Ltd. Boiler having increased indoor heating efficiency and enabling simultaneous use of indoor heating and hot water

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