KR100821960B1 - Local heating system for energy saving in cogeneration - Google Patents

Local heating system for energy saving in cogeneration Download PDF

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KR100821960B1
KR100821960B1 KR1020070010834A KR20070010834A KR100821960B1 KR 100821960 B1 KR100821960 B1 KR 100821960B1 KR 1020070010834 A KR1020070010834 A KR 1020070010834A KR 20070010834 A KR20070010834 A KR 20070010834A KR 100821960 B1 KR100821960 B1 KR 100821960B1
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South Korea
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heating
hot water
condenser
valve
steam turbine
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KR1020070010834A
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Korean (ko)
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송범종
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주식회사 케너텍
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    • 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
    • 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
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/17—District heating
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

An energy-saving local heating system is provided to achieve improved thermal efficiency by firstly heating water through steam heat in a condenser and secondly heating water through steam heat in a heat exchanger. An energy-saving local heating system includes a steam turbine(20), a generator(10), a condenser(30), a heat exchanger(40), a cooling tower(50), a hot water receiving unit(60), and a valve. The generator generates electric energy in interlock with the steam turbine. The condenser is connected to a low pressure steam turbine(22) of the steam turbine and adjusts internal pressure of the turbine and firstly heats water. The heat exchanger secondly heats water by the steam of the low pressure steam turbine. The cooling tower supplies cooling water to the condenser. The valve controls cooling water and hot water introduced into the condenser. The hot water recovered by the control of the valve is firstly heated in the condenser and secondly heated in the heat exchanger.

Description

난방용 회수온수를 이용한 에너지 절감 지역난방 방법{LOCAL HEATING SYSTEM FOR ENERGY SAVING IN COGENERATION}Energy saving district heating method using recovery hot water for heating {LOCAL HEATING SYSTEM FOR ENERGY SAVING IN COGENERATION}

도 1은 종래의 열병합 발전과 지역난방 방법을 나타낸 개략도.1 is a schematic diagram showing a conventional cogeneration and district heating method.

도 2는 본 발명의 난방용 회수온수를 이용한 에너지 절감 지역난방 방법의 구성도.Figure 2 is a block diagram of an energy saving district heating method using the recovery hot water for heating of the present invention.

도 3은 복수기를 통과하는 관이 두 개의 관으로 구성된, 또 하나의 본 발명인 난방용 회수온수를 이용한 에너지 절감 지역난방 방법을 나타낸 구성도.Figure 3 is a block diagram showing the energy-saving district heating method using the recovery hot water for another heating of the present invention consists of two pipes passing through the condenser.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

10 : 발전기 20 : 증기터빈10: generator 20: steam turbine

21 : 고압증기터빈 22 : 저압증기터빈21: high pressure steam turbine 22: low pressure steam turbine

30 : 복수기 31 : 제1관30: Avengers 31: Part 1

32 : 제2관 40 : 난방용열교환기32: 2nd Subsection 40: Heat Exchanger for Heating

50 : 냉각탑 60 : 온수사용처50: cooling tower 60: hot water destination

71 ~ 74, 81 ~ 88 : 밸브 71-74, 81-88: valve

본 발명은 난방용 회수온수를 이용한 에너지 절감 지역난방 방법에 관한 것이다.The present invention relates to an energy saving district heating method using the recovery hot water for heating.

본 발명과 관련된 종래기술로는 한국공개특허 제10-2000-0073827호 "지역난방 복합화력발전소용 증기터빈 배압 조절장치"가 있다.Prior art related to the present invention is Korea Patent Publication No. 10-2000-0073827 "Steam turbine back pressure regulating device for district heating combined cycle power plant".

상기의 공개특허는 증기터빈을 고압 저압으로 분리하지 않고 일체형으로 하여, 운전이 편리하고 냉각탑이 필요없어 용수 소요량이 적고 항상 안정적인 중온수 온도 및 배압 조절능력을 갖는 지역난방 복합화력발전소용 증기터빈 배압조절장치를 제공하고 있으나, 지역난방열수요처에서 회수된 온수가 지역난방열교환기에서만 가열되는 일반적인 열병합발전의 구성을 지니고 있어 열효율이 개선되지 못하는 문제점을 지니고 있었다.The above-mentioned patent discloses a steam turbine back pressure for district heating combined cycle power plant that has a constant water temperature and back pressure control ability because the steam turbine is integrated without being separated by high pressure and low pressure, which is convenient to operate and does not require a cooling tower. Although it provides a control device, it has a problem that the heat efficiency is not improved because the hot water recovered from the district heating demand has a general cogeneration system in which only the district heating heat exchanger is heated.

또한 한국공개특허 제10-2002-0024181호 "지역난방에서 공급자와 수용가의 열매체 공유장치"는 지역난방시설에서 공급자가 관리하고 있는 열수송시설의 열이송관에 사용되는 열매체(난방수)를 수용가측의 열매체로 공유하여 수용가측에는 열매체로 인한 산화와 부식을 해소할 수 있는 공급자와 수용가의 열매체의 공유장치를 제공한다.In addition, Korean Patent Publication No. 10-2002-0024181, "Heating medium sharing device of supplier and customer in district heating", uses the heating medium (heating water) used in the heat transfer pipe of the heat transportation facility managed by the supplier in the district heating facility. By sharing with the heat medium of the side, the customer side provides a sharing device of the heat medium of the supplier and the customer which can solve the oxidation and corrosion caused by the heat medium.

그러나 회수된 온수가 열교환기에서 가열되는 일반적인 열병합 발전의 지역난방 구성의 틀에서 벗어나지 못했다.However, the recovered hot water did not deviate from the framework of the district heating scheme of general cogeneration in which the recovered hot water is heated in a heat exchanger.

본 발명은 상기와 같은 종래의 문제를 해결하기 위해, 온수사용처에서 회수된 난방용 온수를 복수기에서 1차 가열하고 난방용 열교환기에서 2차 가열하여 열효율을 높여 에너지를 절감하는 방법을 제공한다.The present invention provides a method for reducing energy by increasing the thermal efficiency by heating the hot water for heating recovered in the hot water use in the condenser first and the second heat in the heat exchanger for heating in order to solve the conventional problems as described above.

본 발명은 난방용 회수온수를 이용한 에너지 절감 지역난방 방법에 관한 것이다.The present invention relates to an energy saving district heating method using the recovery hot water for heating.

열병합 발전에서 열원에 의해 고온,고압의 증기가 발생하면, 그 증기가 증기터빈을 구동시키게 되고 증기터빈과 연동되는 발전기에 전기가 발생하게 된다. 그리고 상기 열원에 의해 발생된 증기의 일부가 배기되어 열교환기에서 난방용 온수관에 증기열을 공급하여 지역난방이 되는 것이 일반적인 지역난방 방법이다.When high temperature and high pressure steam is generated by a heat source in cogeneration, the steam drives a steam turbine and generates electricity in a generator linked to the steam turbine. In the general district heating method, a part of the steam generated by the heat source is exhausted and the district heating is supplied by supplying steam heat to the hot water pipe for heating in the heat exchanger.

본 발명은 발생한 고온, 고압의 증기에 의해 구동되는 증기터빈과; 상기 증기터빈과 연동되어 전기를 발생시키는 발전기와 상기 증기터빈에 구비된 저압증기터빈에 연결되어, 터빈의 내부압력을 조절하여 증기터빈의 안정성을 유지시키고 난방용 온수를 1차 가열하는 복수기와 상기 저압증기터빈의 난방용 배기증기를 받아 난방용 온수를 2차 가열하는 난방용열교환기와 상기 복수기에 냉각수를 공급하는 냉각탑과 난방용 온수를 공급받는 온수사용처와 복수기에 공급되는 냉각수와 난방용 온수의 유입을 조절하는 밸브로 구성되어 있다.The present invention is a steam turbine driven by the generated high temperature, high pressure steam; The low pressure and the condenser which is connected to the steam turbine in conjunction with the generator to generate electricity and the low pressure steam turbine provided in the steam turbine, by controlling the internal pressure of the turbine to maintain the stability of the steam turbine and the first heating hot water for heating It is a heating heat exchanger for heating the hot water for secondary heating by receiving the exhaust steam for the steam turbine, a cooling tower for supplying cooling water to the condenser, a hot water source for receiving hot water for heating, and a valve for controlling the inflow of cooling water and heating hot water supplied to the condenser. Consists of.

상기의 밸브로 난방용 온수의 유입을 조절하여 회수된 난방용 온수가 복수기에서 증기터빈의 증기열을 받아 1차 가열되고 난방용열교환기에서 저압증기터빈의 배기증기의 증기열에 의해 2차 가열되어 열효율이 높은 지역난방 방법을 제공하게 된다.The hot water for heating recovered by controlling the inflow of the hot water for heating by the valve is first heated by receiving steam heat of the steam turbine in the condenser and secondly heated by steam heat of the exhaust steam of the low pressure steam turbine in the heat exchanger for high thermal efficiency. Provide district heating methods.

복수기에서 1차적으로 가열이 된 후에 난방용열교환기에서 2차 가열이 되기 때문에 종래에 열교환기에서만 난방용 온수를 가열하는 방법에 비하여 열효율이 높게 된다.Since the second heating is performed in the heat exchanger for heating after being primarily heated in the condenser, the thermal efficiency is higher than that of the conventional method of heating hot water for heating only in a heat exchanger.

본 발명의 기술적 사상을 첨부된 도면에 의하여 보다 구체적으로 설명하면 다음과 같다.Hereinafter, the technical idea of the present invention will be described in detail with reference to the accompanying drawings.

그러나 첨부된 도면은 본 발명의 기술적 사상을 보다 구체적으로 설명하기 위한 하나의 예를 도시한 것에 불과하므로 본 발명의 기술적 사상이 첨부된 도면에 한정되는 것은 아니다.However, the accompanying drawings are only one example for more specifically describing the technical idea of the present invention, and thus the technical idea of the present invention is not limited to the accompanying drawings.

도 1은 종래의 열병합 발전과 난방 방법을 나타낸 개략도로써 증기터빈(20)의 저압증기터빈(22)에서 발생한 증기가 난방용열교환기(40)에서만 난방용 온수에 증기열을 가열하여 온수사용처(60)에 온수를 공급하게 된다. 또한, 증기터빈(20)의 내부압력을 조절하는 복수기(30)는 냉각탑(50)에서 냉각수를 공급받아 증기터빈(20)의 안정성을 유지하게 된다.1 is a schematic view showing a conventional cogeneration and heating method, the steam generated in the low-pressure steam turbine 22 of the steam turbine 20 heats the steam heat to the hot water for heating only in the heat exchanger 40 for heating water to use hot water (60) Hot water is supplied to the In addition, the condenser 30 for adjusting the internal pressure of the steam turbine 20 receives the cooling water from the cooling tower 50 to maintain the stability of the steam turbine 20.

이에 대하여, 열효율을 개선한 본 발명은 첨부된 도 2와 같이 온수사용처(60)에서 회수된 난방용 온수가 복수기(30)를 1차 통과하면서 증기열을 공급받고 난방용열교환기(40)를 2차 통과하면서 증기열을 공급받게 된다.On the contrary, in the present invention having improved thermal efficiency, the hot water for heating recovered at the hot water using point 60 passes through the condenser 30 firstly and is supplied with steam heat, and the heating heat exchanger 40 is secondary. As it passes, it receives steam heat.

이때, 밸브는 밸브(71)와 밸브(73)가 닫혀서 냉각탑(50)의 냉각수 공급이 끊어지고 밸브(72)와 밸브(74)가 열려서 온수사용처(60)를 지나는 난방용 온수가 복수기(30)에 공급되게 된다.At this time, the valve 71 and the valve 73 is closed, the supply of cooling water to the cooling tower 50 is cut off, the valve 72 and the valve 74 is opened, the hot water for heating passing through the hot water use place 60 is a condenser (30). To be supplied.

상기의 난방용 온수는 온수사용처(60)을 지나며 상당량의 열을 잃어서 냉각수를 대체하여 증기터빈(20)의 안정성 유지를 가능하게 한다.The hot water for heating is passed through the hot water use (60) to lose a considerable amount of heat to replace the cooling water to maintain the stability of the steam turbine (20).

온수 사용이 없을 시에는 밸브(72)와 밸브(74)를 닫아 난방용 온수의 복수기(30) 유입을 차단하고 밸브(71)와 밸브(73)를 열어 일반적인 열병합 발전의 냉각수 유입을 가능하게 한다.When there is no hot water used, the valve 72 and the valve 74 are closed to block the inflow of the condenser 30 of the hot water for heating, and the valve 71 and the valve 73 are opened to enable the inflow of cooling water of general cogeneration.

상기에 사용되는 밸브는 전자나 컴퓨터 장치에 의한 모터조작과 수동조작이 가능하다. 일반적으로 사용되는 모터조작 액추에이터(Motor operating actuator)형의 버터플라이 밸브(Butterfly Valve)가 적합하나 상기의 밸브의 성능에 부합된다면 다른 밸브를 사용하더라도 관계없다.The valve used above is capable of motor operation and manual operation by electronic or computer devices. Although a butterfly valve of a motor operating actuator type which is generally used is suitable, other valves may be used as long as it meets the performance of the valve.

복수기를 통과하는 관이 2 개로 구성된 또 하나의 본 발명의 구성을 도 3으로 제시한다.Another configuration of the invention consisting of two tubes passing through the condenser is shown in FIG. 3.

도 3에서와 같이 복수기(30)을 지나는 제1관(31)과 제2관(32)의 2 개의 관이 설치되고 냉각탑(50)와 난방용열교환기(40)와 연결되는 추가적인 관과 난방용 온수 와 냉각수의 유입과 유출을 조절하는 추가적인 밸브를 구비한다. 제1관(31)과 제2관(32)의 두 개의 관이 복수기(30)를 통과하며 증기열을 공급받기 때문에 도 2의 구성에 비하여 난방용 온수를 가열함에 있어 두 배의 효율을 지닌다.As shown in FIG. 3, two tubes of the first tube 31 and the second tube 32 passing through the condenser 30 are installed and connected to the cooling tower 50 and the heat exchanger 40 for heating and hot water for heating. And additional valves to control the inflow and outflow of cooling water. Since two pipes of the first pipe 31 and the second pipe 32 pass through the condenser 30 and receive steam heat, the two pipes of the first pipe 31 and the second pipe 32 have twice the efficiency in heating the hot water for heating.

도 3에서의 밸브의 작동에 대해 경우를 나누어 다음과 같이 설명한다.The operation of the valve in FIG. 3 will be described as follows by dividing the case.

A. 100% 온수 사용시A. 100% hot water

다량의 난방용 온수가 필요할 시 밸브의 작동은 밸브(81), 밸브(82), 밸브(85), 밸브(86)가 닫혀 냉각수의 유입을 막고 밸브(83), 밸브(84), 밸브(87), 밸브(88)가 열려서 난방용 온수가 제 1관(31)과 제 2관(32)을 지나 복수기(30)를 통과하면서 증기열을 공급받아 1차 가열이 이루어지게 된다.When a large amount of hot water for heating is required, the operation of the valve closes the valve 81, the valve 82, the valve 85, and the valve 86 to prevent the inflow of the coolant, and the valve 83, the valve 84, and the valve 87 ), The valve 88 is opened so that the hot water for heating passes through the condenser 30 through the first pipe 31 and the second pipe 32 to receive steam heat, and thus the primary heating is performed.

B. 50% 온수 사용시B. 50% hot water

소량의 난방용 온수가 필요할 시 밸브의 작동은 밸브(81), 밸브(83),밸브(85), 밸브(88)가 닫히고 밸브(82), 밸브(84), 밸브(86), 밸브(87)가 열리거나 밸브(82), 밸브(84), 밸브(86), 밸브(87)가 닫히고 밸브(81), 밸브(83),밸브(85), 밸브(88)가 열려서 복수기(30)을 지나는 두 개의 관(31,32) 중 하나는 난방용 온수가 흐르고 다른 하나는 냉각수가 흐르게 된다.When a small amount of hot water for heating is required, the valve can be operated by valve 81, valve 83, valve 85, valve 88, valve 82, valve 84, valve 86, valve 87 ) Or valve 82, valve 84, valve 86, valve 87 are closed and valve 81, valve 83, valve 85, valve 88 are opened to condenser 30. One of the two pipes (31, 32) passing through the flow of hot water for heating and the other flows the cooling water.

C. 온수 비사용시C. When not using hot water

난방용 온수 비사용시에는 밸브(83), 밸브(84), 밸브(87), 밸브(88)를 닫고 밸브(81), 밸브(82), 밸브(85), 밸브(86)를 열어서 복수기(30)를 지나는 두 개의 관(31,32)에 냉각수가 흐르게 된다.When the hot water for heating is not used, the valve 83, the valve 84, the valve 87, the valve 88 is closed, and the valve 81, the valve 82, the valve 85, the valve 86 are opened, and the condenser 30 is opened. Cooling water flows through the two tubes (31, 32) passing through.

본 발명에 의해, 난방용열교환기 단독의 가열에 의한 난방용 온수공급에만 의존하던 종래의 열병합 발전의 지역난방 방법을 개선하여 복수기에서 1차적으로 가열이 이루어지고 2차적으로 난방용열교환기에서 가열이 됨에 따라 종래의 방법에 비해 뛰어난 열효율을 지니게 되고 이로 인하여 난방용 온수의 온도를 높히는 데 걸리는 시간이 절약되고 난방용 온수의 온도를 올리는데 드는 열원의 에너지원이 절감된다.According to the present invention, the district heating method of the cogeneration system, which was dependent only on the supply of hot water for heating by heating the heating heat exchanger alone, is improved by heating in the condenser first and secondly in the heating heat exchanger. Compared with the conventional method, it has excellent thermal efficiency, which saves the time taken to raise the temperature of the hot water for heating and the energy source of the heat source for raising the temperature of the hot water for heating.

Claims (3)

열병합발전의 지역난방 방법에 있어서,In the district heating method of cogeneration, 발생한 증기에 의해 구동되는 증기터빈(20)과; 상기 증기터빈(20)과 연동되어 전기를 발생시키는 발전기(10)와 상기 증기터빈(20)에 구비된 저압증기터빈(22)과 연결되어 터빈의 내부압력을 조절하고 난방용 온수를 1차 가열하는 복수기(30)와 상기 저압증기터빈(22)의 난방용 배기증기를 받아 난방용 온수를 2차 가열하는 난방용열교환기(40)와 상기 복수기(30)에 냉각수를 공급하는 냉각탑(50)과 난방용 온수를 공급받는 온수사용처(60)와 복수기에 유입되는 냉각수와 난방용 온수를 조절하는 밸브로 구성되며, A steam turbine 20 driven by the generated steam; It is connected to the generator 10 to generate electricity in conjunction with the steam turbine 20 and the low-pressure steam turbine 22 provided in the steam turbine 20 to adjust the internal pressure of the turbine and to primary heating the hot water for heating The heating heat exchanger 40 for receiving heating exhaust steam of the condenser 30 and the low-pressure steam turbine 22 for heating second heating, the cooling tower 50 for supplying cooling water to the condenser 30, and heating hot water. Consists of a valve for controlling the hot water used to receive the supply 60 and the coolant flowing into the condenser and hot water for heating, 상기 밸브의 조절에 의해 회수된 난방용 온수가 복수기(30)에서 1차 가열되고 난방용열교환기(40)에서 2차 가열되는 것을 특징으로 하는,Characterized in that the hot water for heating recovered by the adjustment of the valve is first heated in the condenser 30 and secondly heated in the heating heat exchanger (40), 난방용 회수온수를 이용한 에너지 절감 지역난방 방법.District heating method using energy recovery hot water for heating. 열병합발전의 지역난방 방법에 있어서,In the district heating method of cogeneration, 발생한 증기에 의해 구동되는 증기터빈(20)과; 상기 증기터빈(20)과 연동되어 전기를 발생시키는 발전기(10)와 상기 증기터빈(20)에 구비된 저압증기터빈(22)과 연결되어 터빈의 내부압력을 조절하고 난방용 온수를 1차 가열하는 복수기(30)와 상기 저압증기터빈(22)의 난방용 배기증기를 받아 난방용 온수를 2차 가열하는 난방용열교환기(40)와 상기 복수기(30)에 냉각수를 공급하는 냉각탑(50)과 난방용 온수를 공급받는 온수사용처(60)와 복수기에 유입되는 냉각수와 난방용 온수를 조절하는 밸브로 구성되며,A steam turbine 20 driven by the generated steam; It is connected to the generator 10 to generate electricity in conjunction with the steam turbine 20 and the low-pressure steam turbine 22 provided in the steam turbine 20 to adjust the internal pressure of the turbine and to primary heating the hot water for heating A heating heat exchanger 40 for receiving heating exhaust steam of the condenser 30 and the low pressure steam turbine 22 for heating second heating, a cooling tower 50 for supplying cooling water to the condenser 30, and heating hot water. Consists of a valve for controlling the hot water used to receive the supply 60 and the coolant flowing into the condenser and hot water for heating, 상기 밸브의 조절에 의해 회수된 난방용 온수가 복수기(30)에서 1차 가열되고 난방용열교환기(40)에서 2차 가열되며, 복수기(30)를 지나는 관이 제1관(31)과 제2관(32)의 2 개의 관으로 되어 있는 것을 특징으로 하는,The hot water for heating recovered by the adjustment of the valve is first heated in the condenser 30 and secondly heated in the heating heat exchanger 40, and the pipe passing through the condenser 30 is the first pipe 31 and the second pipe. It is characterized by two tubes of (32), 난방용 회수온수를 이용한 에너지 절감 지역난방 방법.District heating method using energy recovery hot water for heating. 제1항 또는 제2항 중 어느 한 항에 있어서,The method according to claim 1 or 2, 상기 밸브는 모터 조작이 되는 버터플라이 밸브인 것을 특징으로 하는The valve is characterized in that the butterfly valve is a motor operation 난방용 회수 온수를 이용한 에너지 절감 지역난방 방법.Energy saving district heating method using recovered hot water for heating.
KR1020070010834A 2007-02-02 2007-02-02 Local heating system for energy saving in cogeneration KR100821960B1 (en)

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CN102287870A (en) * 2011-06-01 2011-12-21 山东泓奥电力科技有限公司 Device of transformation of straight condensing unit into heat supply unit for improving heat supply economical effect
CN101705849B (en) * 2009-11-19 2012-07-04 河北理工大学 Self-coupling cold source heat pump circulating device of low-temperature exhaust heat power generating system in low temperature exhaust steam condensation process
CN102997309A (en) * 2012-12-26 2013-03-27 北京国电蓝天节能科技开发有限公司 Classification heating system with high-temperature heat source heater bypass pipe
KR101559728B1 (en) 2014-01-20 2015-10-13 지에스파워 주식회사 Cogeneration Plant Cooling System
WO2021203747A1 (en) * 2020-04-09 2021-10-14 华能国际电力股份有限公司德州电厂 Switching system for high-backpressure heat supply circulating water system and water tower circulating water system of thermal power plant

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KR200195965Y1 (en) 2000-03-28 2000-09-15 주식회사토문엔지니어링 water-saving type water supplying apparatus using reverse-returning method in mechanical work of building
KR100393394B1 (en) 2003-02-27 2003-08-02 Kenertec Co Ltd Continuous heating system by low temperature water in combined heat and power plant
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101705849B (en) * 2009-11-19 2012-07-04 河北理工大学 Self-coupling cold source heat pump circulating device of low-temperature exhaust heat power generating system in low temperature exhaust steam condensation process
CN102287870A (en) * 2011-06-01 2011-12-21 山东泓奥电力科技有限公司 Device of transformation of straight condensing unit into heat supply unit for improving heat supply economical effect
CN102997309A (en) * 2012-12-26 2013-03-27 北京国电蓝天节能科技开发有限公司 Classification heating system with high-temperature heat source heater bypass pipe
KR101559728B1 (en) 2014-01-20 2015-10-13 지에스파워 주식회사 Cogeneration Plant Cooling System
WO2021203747A1 (en) * 2020-04-09 2021-10-14 华能国际电力股份有限公司德州电厂 Switching system for high-backpressure heat supply circulating water system and water tower circulating water system of thermal power plant

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