CN110446888A - 蒸汽过热器 - Google Patents

蒸汽过热器 Download PDF

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Publication number
CN110446888A
CN110446888A CN201680087232.2A CN201680087232A CN110446888A CN 110446888 A CN110446888 A CN 110446888A CN 201680087232 A CN201680087232 A CN 201680087232A CN 110446888 A CN110446888 A CN 110446888A
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CN
China
Prior art keywords
steam
wedge
present
pipe
shaped
Prior art date
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Pending
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CN201680087232.2A
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English (en)
Inventor
V·B·特伦金
O·V·苏奇科夫
V·V·马尔金
V·A·马蒂诺夫
A·E·博多科夫
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Theo Podolisk Machinery Manufacturing Co Ltd
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Theo Podolisk Machinery Manufacturing Co Ltd
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Application filed by Theo Podolisk Machinery Manufacturing Co Ltd filed Critical Theo Podolisk Machinery Manufacturing Co Ltd
Publication of CN110446888A publication Critical patent/CN110446888A/zh
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D5/00—Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy
    • G21D5/04—Reactor and engine not structurally combined
    • G21D5/08—Reactor and engine not structurally combined with engine working medium heated in a heat exchanger by the reactor coolant
    • G21D5/12—Liquid working medium vaporised by reactor coolant
    • G21D5/14—Liquid working medium vaporised by reactor coolant and also superheated by reactor coolant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G7/00—Steam superheaters characterised by location, arrangement, or disposition
    • F22G7/14—Steam superheaters characterised by location, arrangement, or disposition in water-tube boilers, e.g. between banks of water tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/26—Steam-separating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/26—Steam-separating arrangements
    • F22B37/268—Steam-separating arrangements specially adapted for steam generators of nuclear power plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
    • F22G3/003—Superheater drain arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
    • F22G3/006—Steam superheaters with heating tubes

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Plasma & Fusion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

本发明涉及动力工程领域，特别是用于核电站汽轮机的蒸汽分离和过热汽温系统。本发明旨在解决保持传热效率时重量和尺寸减小的问题。在本发明中该问题通过以下方法解决：第一级和第二级管束垂直地安装在同一高度上，使得其与壳体内部之间有两个进口分段收集管和一个楔形排气集管，楔形排气集管转角为10°至90°，蒸汽出口管位于在垂直壳体中楔形出气集管对面。重量和尺寸的实际减少为18‑25％，这使在紧凑系统中使用该解决方案来蒸汽分离和过热。

Description

蒸汽过热器
本发明涉及动力工程领域，特别是用于核电站汽轮机的蒸汽分离和蒸汽过热系统。
已知一种核电站汽轮机的蒸汽过热器，包括壳体，并位于分离器上方。蒸汽过热器包含管束式热交换管。管束平行于其垂直轴线安装在壳体中，并且分成矩形截面的两块(俄罗斯联邦实用新型专利No.54271U1，IPCН02К7/00，发布于2006年6月10日)。
已知一种用于使汽轮机过热的蒸汽过热器，(俄罗斯联邦实用新型专利No.88774U1，IPC F22B 37/26，发布于2009年11月20日)其内置于壳体中并由长方体形式的管束组成。管束安装平行于其垂直轴线。
为原型选择的技术解决方案是一种蒸汽过热器，其被包含于分离器过热器。它由在垂直壳体中第一级管束和第二级管束组成，并且管束位于彼此之上(专利RU 2522273，发布于2014年7月10日)。
由于蒸汽过热器中第一级管束在第二级管束彼此之上，这种蒸汽过热器设计的缺点是很高的高度，这导致设备的重量和尺寸的增加，制造的高难度和高成本以及特殊运输要求。当第一和第二蒸汽过热器彼此相邻(平行)安装时，第一和第二蒸汽过热器后面的出气集管中的流通截面面积减小，通过增加液压阻力和流速分布不均匀度而降低热交换效率。
本发明旨在解决保持传热效率时重量和尺寸减小的问题。
在本发明中该问题通过以下方法解决：第一级和第二级管束垂直的安装在相同高度上，使得它们与壳体内部之间形成两个进口分段收集管和一个楔形排气集管，楔形排气集管转角为10°至90°，蒸汽出口套管位于楔形排气歧管对面垂直壳体中。
附图1、2说明本发明：
图1-蒸汽过热器的纵截面；
图2-图1中A-A剖面。
蒸汽过热器包括壳体1，其中两个热交换管束2、3放置。两个管束中的传热表面4平行于其垂直轴线5安装在壳体1中。传热表面被分成两部分并且相对于彼此成角度，它们形成两个进口分段收集管6、7和一个楔形排气集管8。
管束中的传热表面之间的角度为10°至90°。
蒸汽过热器工作原理如下：
通过进气套管9湿蒸汽进入过热器的下部，蒸汽从那里进入进口分段收集管6、7，然后进入第一级2和第二级3的管束的传热表面。在传热表面上，蒸汽由于加热蒸汽通过管内的传热表面而过热。
从过热器里过热蒸汽进入楔形排气集管并通过套管9离开过热器。
由于蒸汽过热器的传热表面相对于彼此分开并成角度的事实，两个进气楔形集管6、7和一个楔形排气集管8形成。它们提供足够的流通截面面积以确保有效的热交换和低阻力。结果是，与原型相比，过热器具有相同的效率，同时壳体1的尺寸减小。
另外，出气套管10与出气集管8放在相同水平桌面上，以便降低工作蒸汽的阻力并确保热交换的效率。
对传热表面最佳蒸汽流速(由冲压空气面积提供)以及从蒸汽过热器管束里的入口和出口处均匀分布蒸汽流并确保沿着壳体直径的紧凑布置的需要来确定过热器中管束表面之间角度在10°至90°范围内的优化。角度小于10°时，由于其流通截面面积的减小，在出气集管8中会发生阻力的增加。角度大于90°时，由于在壳体恒定直径情况下传热表面的面积缩小，会降低热交换效率。
这些角度是通过构建数学模型和试验台上试验吹除获得的。
因此，该技术问题(保持传热效率时重量和尺寸减小的问题)解决了，重量和尺寸的实际减少为18-25％，这使在紧凑系统中使用该解决方案来蒸汽分离和过热。

Claims (1)

1.蒸汽放位于壳体上面，包括第一和第二级的两个管束，进气集管和出气集管以及蒸汽进气管和出气管，其特征在于，第一级和第二级管束垂直地安装在同一高度上，使得其与壳体内部之间有两个进口分段收集管和一个楔形排气集管，楔形排气集管转角为10°至90°，蒸汽出口管位于在垂直壳体中楔形出气集管对面。
CN201680087232.2A 2016-09-30 2016-09-30 蒸汽过热器 Pending CN110446888A (zh)

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PCT/RU2016/000648 WO2018063021A1 (ru) 2016-09-30 2016-09-30 Пароперегреватель

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US (1) US20190214158A1 (zh)
EP (1) EP3521700A4 (zh)
JP (1) JP2020509322A (zh)
KR (1) KR102306926B1 (zh)
CN (1) CN110446888A (zh)
BR (1) BR112018077516A2 (zh)
CA (1) CA3047873C (zh)
RU (1) RU2707240C1 (zh)
UA (1) UA124064C2 (zh)
WO (1) WO2018063021A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800113A (en) * 1948-03-16 1957-07-23 Babcock & Wilcox Co Steam generator
US4273077A (en) * 1978-10-18 1981-06-16 Stein Industrie Vertical steam separator-superheater
GB2006939B (en) * 1977-10-17 1982-04-07 Stein Industrie Vertical separator superheater
US4530814A (en) * 1982-05-13 1985-07-23 The Babcock & Wilcox Company Apparatus for superheating steam
US4683842A (en) * 1985-08-30 1987-08-04 L. & C. Steinmuller Gmbh Apparatus for drying wet steam and subsequently superheating the dried steam

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1759011A (en) * 1928-04-30 1930-05-20 Superheater Co Ltd Reheater
US4248181A (en) * 1978-10-11 1981-02-03 Stein Industrie Vertical steam separator-superheater
JP2522273Y2 (ja) 1991-08-06 1997-01-08 本田技研工業株式会社 バルブボディ構造
RU88774U1 (ru) * 2009-07-16 2009-11-20 Александр Макарович Маринич Сепаратор-пароперегреватель турбины атомной электрической станции
RU2522273C1 (ru) * 2012-11-13 2014-07-10 Открытое акционерное общество "Российский концерн по производству электрической и тепловой энергии на атомных станциях" (ОАО "Концерн Росэнергоатом") Сепаратор-пароперегреватель

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800113A (en) * 1948-03-16 1957-07-23 Babcock & Wilcox Co Steam generator
GB2006939B (en) * 1977-10-17 1982-04-07 Stein Industrie Vertical separator superheater
US4273077A (en) * 1978-10-18 1981-06-16 Stein Industrie Vertical steam separator-superheater
US4530814A (en) * 1982-05-13 1985-07-23 The Babcock & Wilcox Company Apparatus for superheating steam
US4683842A (en) * 1985-08-30 1987-08-04 L. & C. Steinmuller Gmbh Apparatus for drying wet steam and subsequently superheating the dried steam

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WO2018063021A1 (ru) 2018-04-05
KR102306926B1 (ko) 2021-10-05
EP3521700A1 (en) 2019-08-07
BR112018077516A2 (pt) 2019-04-02
RU2707240C1 (ru) 2019-11-25
US20190214158A1 (en) 2019-07-11
CA3047873C (en) 2022-06-07
EP3521700A4 (en) 2020-05-27
KR20190087296A (ko) 2019-07-24
CA3047873A1 (en) 2018-04-05
JP2020509322A (ja) 2020-03-26
UA124064C2 (uk) 2021-07-14

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Application publication date: 20191112