KR970046920A - Steam generation method and plant with supercritical steam parameters in a continuous flow steam regulator - Google Patents

Steam generation method and plant with supercritical steam parameters in a continuous flow steam regulator Download PDF

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KR970046920A
KR970046920A KR1019960063237A KR19960063237A KR970046920A KR 970046920 A KR970046920 A KR 970046920A KR 1019960063237 A KR1019960063237 A KR 1019960063237A KR 19960063237 A KR19960063237 A KR 19960063237A KR 970046920 A KR970046920 A KR 970046920A
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steam
wall
temperature
working medium
separation point
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KR100197741B1 (en
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베르너 케셀
우베 크로크만
게르하르트 바이스싱거
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침머만 니콜라우스, 루비오 요셉
에파우테 에네르기 운트 페르파렌스테크니크 게엠베하
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B3/00—Other methods of steam generation; Steam boilers not provided for in other groups of this subclass
    • F22B3/08—Other methods of steam generation; Steam boilers not provided for in other groups of this subclass at critical or supercritical pressure values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B29/00—Steam boilers of forced-flow type
    • F22B29/06—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
    • F22B29/067—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes operating at critical or supercritical pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B35/00—Control systems for steam boilers
    • F22B35/06—Control systems for steam boilers for steam boilers of forced-flow type
    • F22B35/10—Control systems for steam boilers for steam boilers of forced-flow type of once-through type
    • F22B35/12—Control systems for steam boilers for steam boilers of forced-flow type of once-through type operating at critical or supercritical pressure

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Turbines (AREA)

Abstract

기밀(機密)의 폐입관벽과, 화석연료용 버너를 가지는 연소실과, 연도가스측 연소실의 하류에서 대류가열면을 가지는 최소한 하나의 대류실과, 최소한 하나의 중간과열기 가열면으로 설계되고, 동작매체가 폐입관벽을 통하여 흐르고, 폐입관벽의 증발기부분으로부터 과열기부분으로의 천이부에서 증기분리장치를 통하여 유도되는 최소한 하나의 가스연도를 가진 연속류 증기제네레이터내에서 초임계 증기파라미터를 가지는 증기발생 방법에 있어서, 동작매체는 분리포인트(15)에서 가스연도(2)의 폐입관벽(3)으로부터 유도되고, 그 열에너지의 일부를 간접 열교환에 의하여 증기터빈(19)으로부터 나와서 최소한 하나의 중간과열기기 가열면(8)에서 가열될 동작매체에 전송하고, 열교환 후 분리포인트(15)에서 폐입관벽(3)으로 다시 유도되고, 폐입관벽(3)의 배출구(10)에서의 적절한 곳에서 동작매체의 온도에 필요한 온도를 가한 온도는 폐입관벽(3)의 허용재료온도 이하로 유지되는 증기발생방법 및 이 방법을 실행하기 위한 플랜트.Combustion chamber with hermetic closed tube wall, fossil fuel burner, at least one convection chamber having a convection heating surface downstream of the flue gas side combustion chamber, and at least one intermediate superheater heating surface, Vapor with supercritical steam parameters in a continuous flow steam generator with at least one gas flue that flows through the inlet pipe wall and is led through a steam separator at the transition from the evaporator section to the superheater section of the closed wall. In the method of generation, the working medium is derived from the inlet pipe wall 3 of the gas flue 2 at the separation point 15 and at least one intermediate part of its thermal energy comes out of the steam turbine 19 by indirect heat exchange. Is transferred from the superheater heating surface 8 to the working medium to be heated and, after heat exchange, is led back to the inlet pipe wall 3 at the separation point 15, and the A steam generating method and a plant for carrying out the method, in which the temperature at which the required temperature is added to the temperature of the working medium at an appropriate place at the outlet 10 is kept below the allowable material temperature of the inlet pipe wall (3).

Description

연속류 증기 레네레이터내에서 초임계 증기 파라미터를 가지는 증기발생 방법 및 플랜트Steam generation method and plant with supercritical steam parameters in a continuous flow steam regulator

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

도 2는 본 발명에 의한 연속류증기제네레이터의 개략 종단면도.2 is a schematic longitudinal sectional view of a continuous flow steam generator according to the present invention;

도3은 다른 열교환기를 가진 도2와 같은 개략 종단면도.3 is a schematic longitudinal sectional view as in FIG. 2 with another heat exchanger;

도4는 다른 예로 설계된 도2와 같은 개략 종단면도.4 is a schematic longitudinal sectional view as in FIG. 2 designed as another example.

Claims (17)

기밀(機密)의 폐입관벽과, 화석연료용 버너를 가지는 연소실과, 연도가스측 연소실의 하류에서 대류가열면을 가지는 최소한 하나의 대류실과, 최소한 하나의 중간과열기 가열면으로 설계되고, 동작매체가 폐입관벽을 통하여 흐르고, 폐입관벽의 증발기부분으로부터 과열기부분으로의 천이부에서 증기분리장치를 통하여 유도되는 최소한 하나의 가스연도를 가진 연속류 증기제네레이터내에서 초임계 증기파라미터를 가지는 증기발생 방법에 있어서, 동작매체는 분리포인트(15)에서 가스연도(2)의 폐입관벽(3)으로부터 유도되고, 그 열에너지의 일부를 간접 열교환에 의하여 증기터빈(19)으로부터 나와서 최소한 하나의 중간과열기기 가열면(8)에서 가열될 동작매체에 전송하고, 열교환 후 분리포인트(15)에서 폐입관벽(3)으로 다시 유도되고, 폐입관벽(3)의 배출구(10)에서의 적절한 곳에서 동작매체의 온도에 필요한 온도를 가한 온도는 폐입관벽(3)의 허용재료온도 이하로 유지되는 것을 특징으로 하는 증기발생방법.Combustion chamber with hermetic closed tube wall, fossil fuel burner, at least one convection chamber having a convection heating surface downstream of the flue gas side combustion chamber, and at least one intermediate superheater heating surface, Vapor with supercritical steam parameters in a continuous flow steam generator with at least one gas flue that flows through the inlet pipe wall and is led through a steam separator at the transition from the evaporator section to the superheater section of the closed wall. In the method of generation, the working medium is derived from the inlet pipe wall 3 of the gas flue 2 at the separation point 15 and at least one intermediate part of its thermal energy comes out of the steam turbine 19 by indirect heat exchange. Is transferred from the superheater heating surface 8 to the working medium to be heated and, after heat exchange, is led back to the inlet pipe wall 3 at the separation point 15, and the A method of generating steam, characterized in that the temperature at which the required temperature is applied to the temperature of the working medium at an appropriate place at the outlet (10) is maintained below the allowable material temperature of the closed inlet pipe (3). 청구항 1에 있어서, 분리포인트(15)에서 배출구(16)에서의 적절한 곳에서 동작매체의 온도에 필요한 온도를 가한 온도튼 폐입관벽(3)의 허용재료온도 이하로 유지되는 것을 특징으로 하는 증기발생방법.2. The steam according to claim 1, wherein the separation point 15 is maintained at a temperature below the allowable material temperature of the inlet tube wall 3 to which the temperature required for the temperature of the operating medium is applied at a suitable place at the outlet 16. How it occurs. 청구항 1 또는 2에 있어서, 배출구(10,16)에서의 적절한 곳에서 동작매체의 온도에 필요한 온도를 가한 온도는 폐입관벽(3)의 허용재료온도 이하인 0~50K로 유지되는 것을 특징으로 하는 증기발생방법.The temperature according to claim 1 or 2, wherein the temperature to which the temperature of the working medium is applied at a suitable place at the outlets 10 and 16 is maintained at 0 to 50 K which is less than or equal to the allowable material temperature of the inlet pipe wall 3. Steam generation method. 청구항 1~3중 어느 한 항에 있어서, 분리포인트(15)는 동작매체의 플로방향에 대하여 폐입관벽(3)의 증발기부분으로부터 과열기부분으로의 천이부(11)의 하류에 위치하는 것을 특징으로 하는 증기발생방법.Separation point (15) according to any one of the preceding claims, characterized in that the separation point (15) is located downstream of the transition (11) from the evaporator section of the closing wall (3) to the superheater section with respect to the flow direction of the working medium. Steam generation method. 청구항 1~3중 어느 한 항에 있어서,분리포인트(15)는 동작매체의 플로방향에 대하여 폐입관벽(3)의 증발기부분으로부터 과열기부분으로의 천이부(11)의 상류에 위치하는 것을 특징으로 하는 증기발생방법.Separation point (15) according to any one of the preceding claims, characterized in that the separation point (15) is located upstream of the transition portion (11) from the evaporator portion of the closing wall (3) to the superheater portion with respect to the flow direction of the working medium. Steam generation method. 청구항 1~3중 어느 한 항에 있어서, 폐입관벽(3)의 증발기부분으로부터 과열기부분으로의 천이부(11)와 동일한 곳인 분리포인트(15)에서 동작매체가 가스연도 (2)의 폐입관벽(3)으로부터 유도되고, 증기분리장치(14)를 통하여 유도된 후, 그 열에너지의 일부를 간접 열교환에 의하여, 증기터빈(19)으로부터 나와서 중간과열기가열면(8)에서 가열될 동작매체에 전송하고, 열교환 후 분리포인트(15)에서 폐입관벽(3)으로 다시 유도되는 것을 특징으로 하는 증기발생방법.The working medium is a closed pipe of gas flue (2) according to any one of claims 1 to 3, wherein the working medium is at the separation point (15) at the same point as the transition portion (11) from the evaporator section to the superheater section of the closed wall (3). After operating from the wall (3) and through the steam separator (14), a part of its thermal energy is discharged from the steam turbine (19) by indirect heat exchange to be heated in the intermediate superheater (8). Steam generation, characterized in that it is guided back to the inlet pipe wall (3) at the separation point (15) after heat exchange. 청구항 1~6중 어느 한 항에 있어서, 열교환은 최소한 하나의 외부2-플로 열교환기(18)에서 일어나는 것을 특징으로 하는 증기발생방법.The steam generating method according to claim 1, wherein the heat exchange takes place in at least one external two-flow heat exchanger. 청구항 1~6중 어느 한 항에 있어서, 열교환은 3-플로 열교환기(20)로서 설계된 최소한 하나의 중간과열기 가열면(8)에서 일어나는 것을 특징으로 하는 증기발생방법.The steam generating method according to claim 1, wherein the heat exchange takes place on at least one intermediate superheater heating surface (8) designed as a three-flow heat exchanger (20). 기밀의 폐입관벽과, 화석연료용 버너를 가지는 연소실과, 연도가스측 연소실의 하류에서 대류가열면을 가지는 최소한 하나의 대류실과, 최소한 하나의 중간과열기 가열면으로 설계되고, 동작매체가 폐입관벽을 통하여 흐르고, 폐입관벽의 증발기부분으로부터 과열기부분으로의 천이부에서 증기분리장치를 통하여 유도되는 최소한 하나의 가스연도를 가진 연속류 증기제네레이터내에서의 청구항 1~8중 어느 한항의 증기발생방법을 실행하기 위한 플랜트에 있어서,가스연도(2)의 폐입관벽(3)의 분리포인트(15)에서, 동작매체가 최소한 하나의 배출구도관(16)을 통하여 최소한 하나의 간접 열교환용 수단으로 공급되고, 다음에 그 열에너지의 일부를 증기터빈(19)으로부터 나와서 최소한 하나의 중간과열기기 가열면(8)에서 가열될 동작매체에 전송하고, 최소한 하나의 도입구도관(17)을 통하여 분리포인트(15)에서 폐입관벽(3)으로 유도되고, 폐입관벽(3)의 배출구(10)에서의 적절한 곳에서 동작매체의 온도에 필요한 온도를 가한 온도는 폐입관벽(3)의 허용재료온도 이하로 유지되는 것을 특징으로 하는 증기발생방법을 실행하기 위한 플랜트.Combustion chamber with hermetic closed pipe wall, fossil fuel burner, at least one convection chamber having a convection heating surface downstream of the flue gas side combustion chamber, and at least one intermediate superheater heating surface, the operating medium being closed The vapor of any one of claims 1 to 8 in a continuous flow steam generator having at least one gas flue that flows through the inlet wall and is led through a steam separator at the transition from the evaporator section to the superheater section of the closed wall. In a plant for carrying out the generating method, at the separation point 15 of the inlet pipe wall 3 of the gas flue 2, the working medium is at least one means for indirect heat exchange through at least one outlet conduit 16. Is supplied to the working medium to be heated at the at least one intermediate superheater heating surface (8), and then a portion of its thermal energy is discharged from the steam turbine (19). The temperature required for the temperature of the operating medium at a suitable place at the outlet 10 of the closed wall 3 through the inlet pipe 17 leading to the closed wall 3 at the separation point 15. The plant for carrying out the steam generating method, characterized in that the temperature added is maintained below the allowable material temperature of the closed pipe wall (3). 청구항 9에 있어서, 분리포인트(15)에서 배출구(16)에서의 적절한 곳에서 동작매체의 온도에 필요한 온도를 가한 온도는 폐입관벽(3)의 허용재료온도 이하로 유지되는 것을 특징으로 하는 플랜트.10. The plant according to claim 9, wherein the temperature at which the separation point 15 is applied to the temperature of the operating medium at a suitable place at the outlet 16 is maintained below the allowable material temperature of the inlet pipe wall 3. . 청구항 9에 있어서, 분리포인트(15)는 동작매체의 플로방향에 대해서 폐입관벽(3)의 증발기부분으로부터 과열기부분으로의 천이부(11)의 하류에 위치하는 것을 특징으로 하는 플랜트.10. The plant according to claim 9, characterized in that the separation point (15) is located downstream of the transition (11) from the evaporator portion of the closed entry wall (3) to the superheater portion with respect to the flow direction of the working medium. 청구항 9에 있어서, 분리포인트(15)는 동작매체의 플로방향에 대해서 폐입관벽(3)의 증발기부분으로부터 과열기부분으로의 천이부(11)의 상류에 위치하는 것을 특징으로 하는 플랜트.10. The plant according to claim 9, characterized in that the separation point (15) is located upstream of the transition (11) from the evaporator portion of the closed tube wall (3) to the superheater portion with respect to the flow direction of the working medium. 청구항 9에 있어서, 분리포인트(15)는 폐입관벽(3)의 증발기부분으로부터 과열기부분으로의 천이부(11)와 동일한 곳이고, 동작매체는 최소한 하나의 배출구도관(12)을 통하여 증기분리장치(14)에 공급되고, 또한 상기 증기분리장치로부터 유도된 증기는 최소한 하나의 간접 열교환수단에 공급되고, 거기서 그 열에너지의 일부를 증기터빈(19)으로부터 나와서 최소한 하나의 중간과열기가열면(8)에서 가열될 동작매체에 전송하고, 최소한 하나의 도입구도관(13)을 통하여 분리포인트(15)에서 폐입관벽(3)으로 유도되는 것을 특징으로 하는 플랜트.10. The separation point (15) according to claim 9, wherein the separation point (15) is the same as the transition (11) from the evaporator section to the superheater section of the closed inlet pipe wall (3), and the operating medium separates steam through at least one outlet conduit (12). The steam supplied to the apparatus 14 and also derived from the steam separator is supplied to at least one indirect heat exchange means, from which part of its thermal energy comes from the steam turbine 19 and at least one intermediate superheater 8) a plant, characterized in that it is transferred to the working medium to be heated in at least one inlet conduit (13) and from the separation point (15) to the closed conduit wall (3). 청구항 9~13중 어느 한 항에 있어서, 최소한 하나의 외부2-플로 열교환기(1 8)가 열교환수단으로서 사용되는 것을 특징으로 하는 플랜트.The plant according to claim 9, wherein at least one external two-flow heat exchanger is used as the heat exchange means. 청구항 9~13중 어느 한 항에 있어서, 최소한 하나의 3-플로 열교환기(20)가 중간과열기가열면(8)으로서 설계되고, 열교환수단으로서 사용되는 것을 특징으로 하는 플랜트.14. Plant according to one of the claims 9 to 13, characterized in that at least one three-flow heat exchanger (20) is designed as an intermediate superheating surface (8) and used as a heat exchange means. 청구항 9~15중 어느 한 항에 있어서, 필수적으로 수평면에 위치하는 분리포인트(15)가 하나의 폐입관벽(3)의 최소한 일부 영역에 배설되는 것을 특징으로 하는 플랜트.The plant as claimed in claim 9, characterized in that the separating point (15), essentially located in the horizontal plane, is excreted in at least part of the area of the one closed wall. 청구항 9~16중 어느 한 항에 있어서, 동작매체의 플로방향에 대하여, 최소한 하나의 동작매체수집수단(24)이 배출구도관(12,16)의 상류에 위치하고, 최소한 하나의 동작매체분배수단(25)이 도입구도관(13,17)의 하류에 위치하는 것을 특징으로 하는 플랜트.17. The apparatus according to any one of claims 9 to 16, wherein at least one working medium collecting means (24) is located upstream of the outlet conduits (12, 16) with respect to the flow direction of the working medium, 25) which is located downstream of the inlet conduits (13, 17).
KR1019960063237A 1995-12-27 1996-12-09 Method and plant for the generation of steam having a supercritical steam parameter in a continuous-flow steam generator KR100197741B1 (en)

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