KR100247386B1 - Parallel economizer type waste heat recovery boiler - Google Patents

Parallel economizer type waste heat recovery boiler Download PDF

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KR100247386B1
KR100247386B1 KR1019970013774A KR19970013774A KR100247386B1 KR 100247386 B1 KR100247386 B1 KR 100247386B1 KR 1019970013774 A KR1019970013774 A KR 1019970013774A KR 19970013774 A KR19970013774 A KR 19970013774A KR 100247386 B1 KR100247386 B1 KR 100247386B1
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pressure
waste heat
heat recovery
recovery boiler
parallel
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KR1019970013774A
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KR19980076878A (en
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구명섭
최영준
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이해규
삼성중공업주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1807—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines
    • F22B1/1815—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines using the exhaust gases of gas-turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/003—Feed-water heater systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/02—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

1. 청구범위에 기재된 발명이 속한 기술분야1. TECHNICAL FIELD OF THE INVENTION

본 발명은 평행절탄기 타입의 폐열회수 보일러에 관한 것이며, 절탄기의 구조를 간단히 하여 배치하고 분할벽을 없앤 폐열회수 보일러에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste heat recovery boiler of the parallel coal mill type, and relates to a waste heat recovery boiler in which the structure of the coal mill is simply arranged and the partition wall is removed.

2. 발명이 해결하려고 하는 기술적 과제2. The technical problem to be solved by the invention

종래의 폐열회수 보일러 시스템은 장치가 복잡하고 그로 인하여 원가상승의 요인이 있으며 진동 및 소음의 원인이 되는 문제점이 있었다.Conventional waste heat recovery boiler system has a complicated device, thereby causing a cost increase and causing vibration and noise.

3. 발명의 해결방법의 요지3. Summary of Solution to Invention

평행절탄기에 사용되는 튜브와 핀을 같도록 하고 피치를 같도록 하며 두 개씩으로 나누어진 고압 및 중압 절탄기를 각각 하나의 고압 및 중압 절탄기로 하고 새로운 배치와 분할벽을 제거한 본 발명에 의해 해결됨.It is solved by the present invention in which the tubes and pins used in the parallel cutting machine have the same pitch, the same pitch, and the high pressure and the medium pressure cutters divided into two are each one of the high pressure and the medium pressure cutters, and the new arrangement and the partition wall are removed.

4. 발명의 중요한 용도4. Important uses of the invention

종래의 복잡했던 구조를 간단히 하여 원가상승의 요인을 줄이고 중량을 감소시킬 수 있으며 평행설치시 진동과 소음의 원인이 되는 출구와 입구의 가스와 물의 온도를 같도록 하고 분할벽을 없앨 수 있는 탁월한 효과가 있음.By simplifying the complicated structure of the related art, it is possible to reduce the factor of cost increase and to reduce the weight, and to make the same temperature of the gas and water at the outlet and inlet which cause vibration and noise in parallel installation, and to eliminate the partition wall. In there.

Description

평행절탄기 타입의 폐열회수 보일러Waste Heat Recovery Boiler

본 발명은 평행절탄기 타입의 폐열회수 보일러에 관한 것이며, 구체적으로 절탄기의 구조를 간단히 하여 배치하고 평행설치시 진동과 소음의 원인이 되는 출구와 입구의 가스와 물의 온도를 같도록 하고 또 다른 진동의 원인인 분할벽을 없앨 수 있는 폐열회수 보일러에 관한 것이다.The present invention relates to a waste heat recovery boiler of a parallel coal mill type, specifically, to arrange the coal mills by simply arranging the structure of the coal mill, and to make the temperature of the gas and water of the outlet and the inlet which cause vibration and noise in parallel installation the same. The present invention relates to a waste heat recovery boiler that can eliminate a partition wall that causes vibration.

복합발전 시스템은 잘 알려진 바와같이 연료를 연소시켜 가스터빈을 구동하여 전력을 발생시켜 그 결과 고온의 폐연소가스가 발생하는데 이 연소 가스를 다시 이용하여 폐열회수 보일러에서 폐열을 흡수하고 흡수된 폐열을 이용하여 물을 고온, 고압의 증기로 바꾸어서 증기터빈을 구동하여 전력을 얻는다. 다시 말하면 가스터빈 시스템과 폐열회수 보일러 시스템과 증기터빈 시스템이 복합되어 있는 시스템이다.As is well known, a hybrid power generation system burns fuel to drive gas turbines to generate power, resulting in high-temperature waste combustion gases, which are then reused to absorb waste heat from the waste heat recovery boiler and absorb the waste heat. It converts water into steam of high temperature and high pressure to drive steam turbine to get electric power. In other words, a gas turbine system, a waste heat recovery boiler system, and a steam turbine system are combined.

폐열회수 보일러 시스템은 일반급수를 가열하여 포화수로 만드는 절탄기와 포화수를 가열하여 포화증기로 만드는 증발기와 포화증기를 고온, 고압의 증기로 만드는 과열기와 고압터빈에서 나온 증기를 다시 가열하는 재열기로 구성되어 있다.The waste heat recovery boiler system is a pelletizer which heats the normal water to make saturated water, an evaporator which heats saturated water to make saturated steam and a superheater which makes saturated steam into high temperature and high pressure steam, and a reheater that heats steam from high pressure turbine again. Consists of

제 2도는 종래의 폐열회수 보일러 시스템을 나타낸 것으로, 종래의 복합 발전에서 평행절탄기를 사용하는 경우에 2개의 두번째 고압 절탄기(16),(18)와 2개의 두번째 중압절탄기(17)(19)가 평행하게 배치가 되었고 2개의 고압절탄기 중 첫번째 고압 절탄기(18)는 두번째 고압 절탄기(16) 뒤에 배치가 되었다. 그리고, 2개의 중압 절탄기 중 첫번째 중압 절탄기(19)는 두번째 중압 절탄기(17)뒤에 배치되었다.2 shows a conventional waste heat recovery boiler system, in which two second high pressure mills (16), (18) and two second medium pressure mills (17) (19) are used in the case of using a parallel coal mill in a conventional combined cycle power generation system. ) Is placed in parallel and the first of the two high-pressure burners 18 is placed behind the second high-pressure burner 16. Then, the first medium pressure economizer 19 of the two medium pressure economizers is disposed behind the second medium pressure economizer 17.

이 경우에 각각의 절탄기와 절탄기 사이는 분할벽(15)이라는 벽에 의해 나누어져 있는데 이는 구조를 복합하게 하고 전체 구조물의 중량의 증가 및 원가 상승의 요인 중의 하나이다.In this case, between each of the cutters and the cutters is divided by the wall called the dividing wall 15, which makes the structure complex and is one of the factors of increasing the weight and cost of the entire structure.

그리고, 두번째 고압 절탄기(16)와 두번째 중압 절탄기(17)에서 증기의 출구의 온도가 같아야하며 첫번째 중압 절탄기(19)와 첫번재 고압 절탄기(18)에서 가스 출구의 온도가 같아야 한다. 이 경우 온도가 다르게 되면 진동과 소음이 생기는 원인이 되며 분할벽(15) 역시 진동과 소음의 원인이 된다.In addition, the temperature of the outlet of the steam in the second high-pressure economizer 16 and the second medium-pressure economizer 17 should be the same, and the temperature of the gas outlet in the first high-pressure economizer 19 and the first high-pressure economizer 18 should be the same. . In this case, if the temperature is different, it causes vibration and noise, and the partition wall 15 also causes vibration and noise.

이와 같이, 종래의 폐열회수 보일러 시스템은 장치가 복잡하고 그로 인하여 원가상승의 요인이 있으며 진동 및 소음의 원인이 되는 문제점이 있었다.As described above, the conventional waste heat recovery boiler system has a complicated device, thereby causing a cost increase and causing vibration and noise.

상기와 같은 문제점를 해결하기 위해 안출된 본 발명은, 폐열회수 보일러에 있어서 평행으로 설치되는 절탄기의 구조를 간단히 하여 원가상승의 요인을 줄이고 중량을 감소시키며 평행설치시 진동과 소음의 원인이 되는 출구와 입구의 가스와 물의 온도를 같도록 하고 또 다른 진동의 원인인 분할벽을 없앨 수 있도록 하는데 목적이 있다.The present invention devised to solve the problems as described above, in the waste heat recovery boiler to simplify the structure of the cutters installed in parallel to reduce the factors of the cost increase, reduce the weight and cause the vibration and noise during parallel installation Its purpose is to make the temperature of gas and water at the inlet and inlet the same and to eliminate the partition wall which is another source of vibration.

이와 같은 목적은 평행절탄기에 사용되는 튜브와 핀을 같도록 하고 피치를 같도록 하며 두 개씩으로 나누어진 고압 절탄기를 하나의 고압 절탄기로 하고 마찬가지 두 개씩으로 나누어진 중압 절탄기를 하나의 중압증발기로 하며 하나의 고압 절탄기와 하나의 중압 절탄기를 나란히 배치하고 상기 고압 절탄기 뒤에 중압 절탄기(12)를 배치하며, 분할벽을 제거한 본 발명에 의해 달성될 수 있는 바, 첨부한 도면을 참고로 이하 상세히 설명한다.The purpose of this is to make the tubes and pins used in the parallel cutting machine the same, the pitch is the same, two high-pressure brakes are divided into one high-pressure cutter, and the same two-pressure blower is divided into one medium-pressure evaporator. One high-pressure economizer and one medium-pressure economizer may be arranged side by side, and the medium-pressure economizer 12 may be disposed behind the high-pressure economizer, and the partition wall may be achieved by the present invention, with reference to the accompanying drawings. Explain.

제1도는 본 발명의 평행절탄기의 배치 구성도.1 is a layout diagram of a parallel mill of the present invention.

제2도는 종래의 평행절탄기의 배치 구성도.2 is a layout diagram of a conventional parallel cutting machine.

제3도는 본 발명의 튜브 배치도.3 is a tube layout of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 폐열회수 보일러 본체 2 : 두번째 중압 재열기1: waste heat recovery boiler body 2: second medium pressure reheater

3 : 두번째 고압 과열기 4 : 첫번째 중압 재열기3: second high pressure superheater 4: first medium pressure reheater

5 : 첫번째 고압 과열기 6 : 고압 증발기5: first high pressure superheater 6: high pressure evaporator

7 : 중압 과열기 8 : 세번째 고압 절탄기7: medium pressure superheater 8: third high-pressure cutter

9 : 중압 증발기 10 : 두번째 고압 절탄기9: medium pressure evaporator 10: second high pressure coal

11 : 두번째 중앙 절탄기 12 : 첫번째 중압 절탄기11: 2nd central heavy press 12: 1st heavy press

13 : 첫번째 고압 절탄기 14 : 저압 증발기13: first high pressure coal mill 14: low pressure evaporator

제 1도는 본 발명의 평행절탄기의 배치 및 구성을 나타낸 것이며, 제 3도는 본 발명의 튜브 배치도를 나타낸 것이다.1 is a view showing the arrangement and configuration of the parallel cutting machine of the present invention, Figure 3 shows a tube layout of the present invention.

본 발명의 구성은, 앞에서 설명되었던 제 2도의 종래 평행절탄기의 배치와 관련해서 설명한다.The configuration of the present invention will be described in relation to the arrangement of the conventional collapsing machine of FIG. 2 described above.

상기 두 개씩으로 나누어진 첫번째 고압 절탄기(18)와 두번째의 고압절탄기(16)는 하나의 고압 절탄기(10)로 만들고 또한, 상기 첫번째 중압 절탄기(19)와 두번째 중압 절탄기(17)도 하나의 중압 절탄기(11)로 만들며, 상기 중압증발기(9)뒤에는 두번째 고압 절탄기(10)와 두번째 중압 절탄기(11)를 나란히 배치한다. 그리고 두번째 고압 절탄기(10) 뒤에는 첫번째 중압 절탄기(12)를 배치하고, 두번째 중압 절탄기(11) 뒤에는 첫번째 고압 절탄기(13)를 배치한다.The first high-pressure economizer 18 and the second high-pressure economizer 16 divided into two are made of one high-pressure economizer 10 and the first medium-pressure economizer 19 and the second medium-pressure economizer 17 ) Is also made of a single medium-pressure cutter (11), the second high-pressure cutter 10 and the second medium-pressure cutter (11) are arranged side by side behind the medium-pressure evaporator (9). And behind the second high-pressure coal mill 10, the first medium-pressure coal mill 12 is arranged, and behind the second medium-pressure coal mill 11, the first high-pressure coal mill 13 is arranged.

상기 두번째 고압 절탄기(10)와 두번째 중압 절탄기(11)는 똑같은 전열을 하도록 하기 위해, 튜브(20)의 직경과 두께 그리고, 핀(21)의 높이와 두께를 같은 크기로 하고, 폐열회수보일러의 횡방향으로의 튜브의 피치(22)가 같도록 하고 폐열회수보일러의 길이방향으로의 튜브의 피치(23)와 갯수도 같도록 한다.In order to make the same heat transfer, the second high pressure coal mill 10 and the second medium pressure coal mill 11 are made to have the same diameter and thickness of the tube 20 and the height and thickness of the fin 21, and the waste heat recovery. The pitch 22 of the tubes in the transverse direction of the boiler is the same and the number of pitches 23 of the tubes in the longitudinal direction of the waste heat recovery boiler is also the same.

마찬가지로 첫번째 고압 절탄기(13)와 첫번째 중압 절탄기(12)가 똑같은 전열을 하기 위해서 튜브의 직경과 두께 및 핀의 높이와 두께가 같고 폐열회수보일러의 횡방향으로 튜브의 피치가 같고 폐열회수보일러의 길이방향으로 튜브의 피치와 갯수가 같도록 한다.Similarly, in order to make the same heat transfer between the first high-pressure economizer 13 and the first medium-pressure economizer 12, the diameter and thickness of the tube and the height and thickness of the fins are the same, and the pitch of the tubes is the same in the transverse direction of the waste heat recovery boiler and the waste heat recovery boiler. The pitch and number of tubes should be the same in the longitudinal direction of.

이하, 본 발명의 작용에 대해 상세히 설명한다.Hereinafter, the operation of the present invention will be described in detail.

급수는 도면에 나타나 있지 않지만 지압증발기(14)를 지나서 탄수기기를 거친 포화수가 고압펌프를 통하여 첫번째 고압 절탄기(13)로 공급이 되고 여기서 데워진 물은 다시 두번째 고압 절탄기(10)로 공급되고, 이렇게 가열된 포화수는 세번째 고압 절탄기(8)를 거쳐서 가열이 된 후 고압증발기(6)에서 수증기로 증발하여 첫번째 고압 과열기(5)와 두번째 고압 과열기(3)에서 과열이 되어서 고압 터빈으로 돌아간다.The feed water is not shown in the figure, but the saturated water passing through the acupressure evaporator 14 and the carburizing machine is supplied to the first high pressure economizer 13 through a high pressure pump, and the heated water is supplied to the second high pressure economizer 10 again. Then, the heated saturated water is heated through a third high pressure blower (8) and then evaporated into water vapor in the high pressure evaporator (6) to be overheated in the first high pressure superheater (5) and the second high pressure superheater (3) to the high pressure turbine. Go back.

또한, 저압 증발기(14)에서 탈기기를 거쳐서 포화수가 된 물은 중압펌프를 통하여 첫번째 중압 절탄기(12)와 두번째 중압절탄기(11)를 거쳐서 중압증발기(9)에서 포화증기로 증발이 일어나서 중압과열기(7)를 거쳐서 과열된 증기는 고압터빈을 거쳐 나온 증기와 합쳐져서 첫번째 중압 재열기(4)와 두번째 중압 재열기(2)에서 재열되어서 중압 터빈으로 들어간다.In addition, the water which has become saturated water through the degassing unit in the low pressure evaporator 14 is evaporated from the medium pressure evaporator (9) to the saturated steam through the first medium pressure economizer (12) and the second medium pressure economizer (11) through a medium pressure pump. The steam superheated via the medium pressure superheater (7) is combined with the steam from the high pressure turbine and reheated in the first medium pressure reheater (4) and the second medium pressure reheater (2) to enter the medium pressure turbine.

본 발명은, 종래의 복잡한 구조로 배치되는 폐열회수 보일러에 있어서 평행으로 설치되는 절탄기의 경우에 그 구조를 간단히 하여 원가상승의 요인을 줄이고 중량을 감소시킬 수 있으며 평행설치시 진동과 소음의 원인이 되는 출구와 입구의 가스와 물의 온도를 같도록 하고 또 다른 진동의 원인인 분할벽을 없앨 수 있도록 하였다.The present invention can simplify the structure in the case of the mills installed in parallel in the waste heat recovery boiler arranged in a complex structure of the prior art to reduce the factors of the cost increase and reduce the weight and cause the vibration and noise in the parallel installation The temperature of the gas and water at the outlet and the inlet to be the same, and the partition wall, which causes another vibration, can be eliminated.

본 발명의 이러한 배치로써 증발기가 3개나 되는 삼중압 사이클의 경우와 같이 고압, 중압, 저압의 절탄기를 배치하는데 따른 복잡한 구조를 본 발명을 응용함으로써 평행 배치를 할 수 있으며 구조를 간단히 하고 분할벽을 사용하지 않을 수 있는 효과가 있다.This arrangement of the present invention allows the parallel arrangement by applying the present invention to a complicated structure for arranging high pressure, medium pressure and low pressure pelletizers as in the case of a triple pressure cycle having three evaporators. There is an effect that you can not use.

Claims (1)

복합 발전 플랜트에 사용되는 폐열회수 보일러에 있어서, 평행절탄기를 사용할 경우 평행절탄기에 사용되는 튜브와 핀을 같도록 하고 피치를 같도록하며 두번째 고압절탄기(10)와 두번째 중압절탄기(11)를 나란히 배치하고 고압단 절탄기(10)뒤에 두번째 중압단 절탄기(12)를 배치하고 두번째 중압단절탄기(11)뒤에 첫번째 고압단 절탄기(13)를 배치하여 구성된 것을 특징으로 하는 평행절탄기 타입의 폐열회수 보일러.In the waste heat recovery boiler used in the combined cycle power plant, when the parallel cutter is used, the tube and the pin used in the parallel cutter are the same, the pitch is the same, and the second high pressure cutter (10) and the second medium pressure cutter (11) are used. Parallel side-breaker type, characterized in that arranged side by side and arranged the second medium-pressure cutter at the back of the high-pressure stage breaker (10) and the first high-pressure stage cutter at the back of the second medium-pressure cutter (11) Waste heat recovery boiler.
KR1019970013774A 1997-04-15 1997-04-15 Parallel economizer type waste heat recovery boiler KR100247386B1 (en)

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