KR20100092182A - Steam condenser for steam turbine - Google Patents

Steam condenser for steam turbine Download PDF

Info

Publication number
KR20100092182A
KR20100092182A KR1020090011438A KR20090011438A KR20100092182A KR 20100092182 A KR20100092182 A KR 20100092182A KR 1020090011438 A KR1020090011438 A KR 1020090011438A KR 20090011438 A KR20090011438 A KR 20090011438A KR 20100092182 A KR20100092182 A KR 20100092182A
Authority
KR
South Korea
Prior art keywords
steam
water
pressure turbine
cooling
turbine
Prior art date
Application number
KR1020090011438A
Other languages
Korean (ko)
Inventor
이용출
Original Assignee
한전케이피에스 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한전케이피에스 주식회사 filed Critical 한전케이피에스 주식회사
Priority to KR1020090011438A priority Critical patent/KR20100092182A/en
Publication of KR20100092182A publication Critical patent/KR20100092182A/en

Links

Images

Classifications

    • 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
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
    • 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
    • F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
    • F01K9/003—Plants characterised by condensers arranged or modified to co-operate with the engines condenser cooling circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B3/00—Condensers in which the steam or vapour comes into direct contact with the cooling medium
    • F28B3/04—Condensers in which the steam or vapour comes into direct contact with the cooling medium by injecting cooling liquid into the steam or vapour

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

PURPOSE: A steam condenser for steam turbine is provided to prevent the increasing of the pressure of the rear end of a low pressure turbine. CONSTITUTION: A steam condenser for steam turbine comprises a cooling part(10), a first injection part(30), a tube shell(40) and a second injection part(50). The cooling part supplies water with cooled. The first injection part condenses the steam vapor to the water by directly ejecting water to the steam which is discharged to the rear side of a low pressure turbine. The steam vapor is condensed in a plurality of tubes(41) in which the cooling water flows is included.

Description

증기터빈의 복수기{Steam condenser for steam turbine}Steam condenser for steam turbine

본 발명은 증기터빈의 복수기에 관한 것으로, 특히 복수기의 진공도를 높여 효율을 향상시킬 수 있는 증기터빈의 복수기에 관한 것이다.The present invention relates to a steam turbine condenser, and more particularly, to a steam turbine condenser capable of improving the efficiency by increasing the vacuum degree of the condenser.

일반적으로, 증기터빈은 하나의 터빈샤프트를 공통으로 사용하는 고압터빈, 중압터빈 및 저압터빈이 순차적으로 배치되어, 그 고압터빈측에서 공급되는 증기에 의해 회전하면서 발전을 하는 설비이다.In general, a steam turbine is a facility in which a high-pressure turbine, a medium-pressure turbine, and a low-pressure turbine using one turbine shaft in common are sequentially disposed, and generate electricity while rotating by steam supplied from the high-pressure turbine side.

이와 같이 터빈의 회전에 사용된 증기는 그 저압터빈을 지난 이후 다시 물로 상변화되어 회수 되어야 한다. 이러한 증기가 회수되지 않으면 그 저압터빈의 끝단측의 압력이 높아져 원활한 발전이 이루어질 수 없다.In this way, the steam used to rotate the turbine has to be recovered by phase change back to water after passing through the low pressure turbine. If such steam is not recovered, the pressure at the end side of the low pressure turbine is high and smooth power generation cannot be achieved.

즉, 복수기는 상기와 같이 증기터빈을 회전시키는데 사용된 증기를 물로 환원시키는 장치로서, 종래 증기터빈의 복수기를 첨부한 도면을 참조하여 상세히 설명한다.That is, the condenser is a device for reducing the steam used to rotate the steam turbine as described above, will be described in detail with reference to the accompanying drawings of the condenser of the conventional steam turbine.

도 1은 종래 증기터빈의 복수기의 구성도로서, 도 1에 도시한 바와 같이 저압터빈(1)의 외측에 위치하여 냉각수를 분사하여 저질 증기의 유입으로 인한 저압터빈(1)의 케이싱 온도 상승을 억제하는 분사노즐부(2)와, 상기 저압터빈(1)의 하부측에 위치하여 다수의 냉각수튜브(3)를 포함하여 상기 저압터빈(1)을 통과한 증기를 물로 환원시키는 튜브쉘(tube shall,4)과, 상기 튜브쉘(4)에 의해 환원된 물 및 상기 분사노즐부(2)에서 분사된 물을 탈기부(6)로 배출하는 펌프(5)를 포함하여 구성된다.FIG. 1 is a configuration diagram of a condenser of a conventional steam turbine. As shown in FIG. 1, a cooling water is injected outside the low pressure turbine 1 to increase the casing temperature of the low pressure turbine 1 due to inflow of low quality steam. A tube shell (tube) for reducing the steam passing through the low pressure turbine (1), including a spray nozzle (2) for suppressing and a plurality of cooling water tubes (3) located on the lower side of the low pressure turbine (1) shall, 4) and a pump 5 for discharging the water reduced by the tube shell 4 and the water sprayed from the injection nozzle unit 2 to the degassing unit 6.

미설명부호 7, 8, 9는 각각 고압터빈, 중압터빈, 터빈샤프트이다.Reference numerals 7, 8, and 9 are respectively a high pressure turbine, a medium pressure turbine, and a turbine shaft.

이하, 상기와 같이 구성되는 종래 증기터빈의 복수기의 구성과 문제점을 보다 상세히 설명한다.Hereinafter, the configuration and problems of the condenser of the conventional steam turbine configured as described above will be described in more detail.

먼저, 증기가 고압터빈(7)과 중압터빈(8) 및 저압터빈(1)을 지나면서 그 고압터빈(7), 중압터빈(8) 및 저압터빈(1)을 순차 회전시켜 전기를 발생시킨다. 상기 저압터빈(1)을 통과한 증기는 그 저압터빈(1)의 후단측 압력을 대기압이상으로 올릴 수 있게 되며, 이와 같은 압력의 상승은 발전을 방해하는 요소가 된다.First, steam passes through the high pressure turbine (7), the medium pressure turbine (8), and the low pressure turbine (1) to sequentially rotate the high pressure turbine (7), the medium pressure turbine (8), and the low pressure turbine (1) to generate electricity. . The steam passing through the low pressure turbine (1) can raise the rear pressure of the low pressure turbine (1) above atmospheric pressure, such a rise in pressure is a factor that hinders power generation.

즉, 상기 저압터빈(1)의 후단측은 항상 진공상태를 유지하여야 증기터빈을 이용하여 발전을 할 수 있게 된다.That is, the rear end side of the low pressure turbine (1) must always maintain a vacuum state to generate power by using a steam turbine.

이와 같은 압력의 상승을 방지하기 위하여 종래에는 그 저압터빈(1)의 하 부측에 튜브쉘(4)를 마련해 두고, 그 튜브쉘(4)에 포함된 다수의 냉각수 튜브(3)에 흐르는 냉각수와, 상기 증기의 열교환을 통해 그 증기를 물로 환원시킨다.In order to prevent such a rise in pressure, a tube shell 4 is provided at the lower side of the low pressure turbine 1 in the related art, and the coolant flowing in the plurality of coolant tubes 3 included in the tube shell 4 and The steam is reduced to water through heat exchange of the steam.

이때 상기 냉각수는 주로 해수를 사용하며, 여름에는 그 냉각수의 온도가 상승하게 되어 그 증기를 빠른 시간 내에 물로 환원시키지 못하게 되며, 따라서 그 저압터빈(1)의 후단측 압력이 상승하여 발전 효율이 낮아지게 된다.At this time, the cooling water mainly uses sea water, and in summer, the temperature of the cooling water is increased so that the steam cannot be reduced to water within a short time. Therefore, the rear end pressure of the low-pressure turbine 1 is increased to lower power generation efficiency. You lose.

즉, 냉각수 온도의 상승으로 복수효율이 저하되고, 이는 발전설비의 효율 저하로 이어져 전력 손실과 생산원가를 증가시키는 문제점이 있었다.That is, as the cooling water temperature rises, the plural efficiency is lowered, which leads to a decrease in efficiency of the power generation facility, thereby increasing power loss and production cost.

또한 상기 저압터빈(1)의 마지막 블래이드의 후단에는 냉각수를 분사하는 분사노즐부(2)가 구비되어 있으며, 이 분사노즐부는 저질 증기의 유입에 의한 저압터빈(1)의 케이싱 온도 상승을 억제하여, 그 설비가 손상되는 것을 방지한다.In addition, at the rear end of the last blade of the low pressure turbine 1, an injection nozzle part 2 for injecting cooling water is provided, and this injection nozzle part suppresses an increase in the casing temperature of the low pressure turbine 1 due to the inflow of low quality steam. To prevent damage to the installation.

상기 분사노즐부(2)를 통해 분사되는 냉각수는 구동 초기에 공급될 수 있는 저질 증기에 의한 문제점을 해결하기 위한 것으로, 증기터빈의 기동 초기에만 사용하고 있다.The cooling water injected through the injection nozzle unit 2 is to solve the problem caused by the poor quality steam which may be supplied at the initial stage of operation, and is used only at the initial stage of starting the steam turbine.

상기와 같이 증기를 튜브쉘(4)을 통해 환원시켜 생성된 물과, 기동 초기에 상기 분사노즐부(2)를 통해 분사된 물은 펌프(5)에 의해 탈기부(6) 측으로 배출된다.As described above, water generated by reducing steam through the tube shell 4 and water injected through the injection nozzle unit 2 at the initial stage of start-up are discharged to the degassing unit 6 side by the pump 5.

이처럼 종래 증기터빈의 복수기는 냉각수가 지나는 튜브쉘(4)과 증기의 열 교환만을 통해 그 증기를 물로 환원시키기 때문에 냉각수의 온도가 상승하는 여름에는 저압터빈(1)의 후단측 압력이 상승하여 발전 효율이 저하되는 문제점이 있었다.As described above, the condenser of the conventional steam turbine reduces the steam to water only through heat exchange between the tube shell 4 through which the cooling water passes and the steam, so in the summer when the temperature of the cooling water rises, the pressure at the rear end of the low pressure turbine 1 rises to generate power. There was a problem that the efficiency is lowered.

상기와 같은 문제점을 감안한 본 발명이 해결하고자 하는 과제는, 증기의 응축효율을 높여 저압터빈 후단측의 압력이 상승하는 것을 방지할 수 있는 증기터빈의 복수기를 제공함에 있다.The problem to be solved by the present invention in view of the above problems is to provide a condenser of the steam turbine to increase the condensation efficiency of the steam to prevent the pressure on the rear end of the low-pressure turbine to rise.

또한 본 발명이 해결하고자 하는 다른 과제는, 증기의 응축을 위해 사용하는 냉각수의 양을 줄여 발전 생산 원가를 절감할 수 있는 증기터빈의 복수기를 제공함에 있다.In addition, another object of the present invention is to provide a condenser of a steam turbine that can reduce the amount of cooling water used for condensation of steam to reduce the production cost of power generation.

상기와 같은 과제를 해결하기 위한 본 발명 증기터빈의 복수기는, 물을 냉각시켜 공급하는 냉각부와, 상기 냉각부의 냉각된 물을 공급받아 저압터빈의 후단으로 배출되는 증기에 직접 분사하여 그 증기를 물로 응축시키는 제1분사부와, 상기 저압터빈의 하부측에서 냉각수가 흐르는 다수의 튜브를 포함하여, 상기 증기를 응축시키는 튜브쉘과, 상기 냉각부의 냉각된 물을 상기 튜브쉘의 상부에 분사하여 열교환 효율을 향상시키는 제2분사부를 포함한다.The condenser of the steam turbine of the present invention for solving the above problems is a cooling unit for cooling and supplying water, and directly injected into the steam discharged to the rear end of the low pressure turbine by receiving the cooled water of the cooling unit. Including a first injection unit for condensing with water, a plurality of tubes through which cooling water flows from the lower side of the low-pressure turbine, the tube shell for condensing the steam, and the cooled water of the cooling unit to the upper portion of the tube shell And a second injection unit for improving heat exchange efficiency.

본 발명은, 증기에서 환원된 물의 일부를 냉각시키고, 그 냉각된 물을 튜브쉘의 표면에 직접 분사하여 열교환효율을 높여 냉각수의 온도가 상승하는 여름에 도 저압터빈 후단의 압력상승을 방지함으로써, 발전 효율의 저하를 방지할 수 있는 효과가 있다.The present invention, by cooling a portion of the water reduced in the steam, by spraying the cooled water directly to the surface of the tube shell to increase the heat exchange efficiency to prevent the pressure rise in the rear end of the low-pressure turbine even in the summer when the temperature of the cooling water rises, There is an effect that can prevent a decrease in power generation efficiency.

또한 발전 효율의 저하를 방지하여 생산원가를 줄임과 아울러 냉각수의 사용량을 줄여 발전 생산 원가를 절감할 수 있는 효과가 있다.In addition, it is possible to reduce the production cost by preventing the deterioration of power generation efficiency and to reduce the production cost of power generation by reducing the amount of cooling water used.

이하, 상기와 같은 본 발명 증기터빈의 복수기의 바람직한 실시예를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings a preferred embodiment of the condenser of the present invention steam turbine as described above in detail.

도 2는 본 발명 증기터빈의 복수기의 바람직한 실시예의 구성도이다.2 is a block diagram of a preferred embodiment of the condenser of the present invention steam turbine.

도 2를 참조하면 본 발명 증기터빈의 복수기 바람직한 실시예는, 증기로부터 환원된 물의 일부를 순환시켜 냉각시키는 냉각부(10)와, 상기 냉각부(10)에서 냉각된 물을 저압터빈(20)의 후단에 운전중 상시 분사하는 제1분사부(30)와, 상기 냉각부(10)에서 냉각된 물을 상기 증기를 응축시켜 물로 환원시키는 튜브쉘(40)의 표면에 분사하여 그 튜브쉘(40)에 포함된 다수의 튜브(41) 내를 흐르는 냉각수의 온도를 낮춰 열교환 효율을 높이는 제2분사부(50)를 포함하여 구성된다.Referring to FIG. 2, a preferred embodiment of the condenser of the steam turbine of the present invention includes a cooling unit 10 for circulating and cooling a portion of water reduced from steam, and a low pressure turbine 20 for cooling water cooled in the cooling unit 10. The first injection unit 30 is always sprayed on the rear end of the operation and the water cooled in the cooling unit 10 is sprayed on the surface of the tube shell 40 condensing the steam to reduce the water to the tube shell ( The second injection unit 50 is configured to increase the heat exchange efficiency by lowering the temperature of the cooling water flowing in the plurality of tubes 41 included in the 40.

상기 냉각부(10)는 상기 제1분사부(30) 또는 제2분사부(50)에서 분사된 물 및 상기 튜브쉘(40)에 의해 환원된 물을 복수펌프(61)의 전단에서 분기하는 제1밸브(11)와, 상기 제1밸브(11)가 열린상태에서 물을 분기공급하여 제2밸브(13)를 통해 공급하는 순환펌프(12)와, 상기 제2밸브(13)를 물을 공급받아 열교환을 통해 냉 각시키는 열교환부(14)를 포함하여 구성된다.The cooling unit 10 branches the water sprayed from the first spraying unit 30 or the second spraying unit 50 and the water reduced by the tube shell 40 at the front end of the plurality of pumps 61. The first valve 11, the circulation pump 12 to supply water through the second valve 13 by supplying the branched water in the open state of the first valve 11, and the second valve 13 It is configured to include a heat exchanger 14 for cooling through heat exchange.

이하, 상기와 같이 구성되는 본 발명 증기터빈의 복수기 바람직한 실시예의 구성과 작용을 보다 상세히 설명한다.Hereinafter, the configuration and operation of the preferred embodiment of the condenser of the present invention steam turbine configured as described above will be described in more detail.

먼저, 튜브쉘(40)통해 응축되어 환원되는 물은 냉각부(10)의 제1밸브(11)와 제2밸브(13)가 열린 상태에서 순환펌프(12)의 작용에 의하여 열교환부(14)로 공급된다. 이때 상기 환원된 물의 일부는 복수펌프(61)를 통해 탈기부(62)로 공급된다.First, the water condensed and reduced through the tube shell 40 is exchanged with the heat exchange part 14 by the action of the circulation pump 12 in a state in which the first valve 11 and the second valve 13 of the cooling unit 10 are opened. Is supplied. At this time, a part of the reduced water is supplied to the degassing part 62 through the plurality of pumps (61).

상기 열교환부(14)로 공급되어진 물은 소정의 온도로 냉각된다.The water supplied to the heat exchange unit 14 is cooled to a predetermined temperature.

일반적으로 상기 튜브쉘(40)의 튜브(41)로 공급되는 냉각수의 온도는 약 23℃이며, 이는 증기의 열을 전달받아 통상 10℃ 이상 상승하여 보통 36 내지 39℃가 된다. In general, the temperature of the cooling water supplied to the tube 41 of the tube shell 40 is about 23 ° C., which is generally raised to 10 ° C. or higher to 36 to 39 ° C. by receiving heat of steam.

상기와 같이 튜브쉘(40)을 거치면서 온도가 상승한 물을 공급받은 열교환부(14)는 적어도 상기 냉각수의 온도보다는 낮은 온도가 되도록 그 물을 냉각한다.As described above, the heat exchanger 14 receiving the water whose temperature rises while passing through the tube shell 40 cools the water so that the temperature is at least lower than the temperature of the cooling water.

그 다음, 상기 냉각된 물은 제1분사부(30)와 제2분사부(50)로 공급된다.Then, the cooled water is supplied to the first spray unit 30 and the second spray unit 50.

상기 제1분사부(30)는 원형태의 관에 설치된 다수의 노즐을 포함하며, 그 구조를 상기 저압터빈(20)의 후단측에 다단으로 배치한다. 이는 상기 저압터빈(20) 을 통해 배출되는 증기에 직접 냉각부(10)에서 냉각된 물을 분사하여 응축시키는 것으로, 직접 분사에 의해 응축 효율을 높일 수 있다.The first spray unit 30 includes a plurality of nozzles installed in a circular tube, and the structure is arranged in multiple stages on the rear end side of the low pressure turbine 20. This is to condense by spraying the water cooled in the cooling unit 10 directly to the steam discharged through the low-pressure turbine 20, it is possible to increase the condensation efficiency by direct injection.

저압터빈(20)측으로 물이 튀지 않도록 그 저압터빈(20)과 가장 가까운 노즐들은 그 저압터빈(20)으로부터 먼 방향으로 경사를 주어 설치한다.The nozzles closest to the low pressure turbine 20 are installed to be inclined away from the low pressure turbine 20 so that water does not splash toward the low pressure turbine 20.

이와 같이 상기 제1분사부(30)에서 분사되는 물은 종래와는 다르게 기동이 이루어지는 동안 상시 분사되어, 증기를 응축시켜 물로 환원시킨다.As such, the water sprayed from the first spraying unit 30 is sprayed at all times during the starting process unlike the prior art, thereby condensing steam to reduce water.

또한, 상기 냉각부(10)의 냉각수를 공급받은 제2분사부(50)는 물을 상기 튜브쉘(40)에 분사한다. 이와 같이 제2분사부(50)의 냉각된 물은 튜브쉘(40)을 지나는 냉각수의 온도를 낮춰 열교환 효율을 높일 뿐만 아니라 공기를 매개로 하는 열교환이 아닌 물을 매개로 하는 열교환이 이루어지기 때문에 열교환효율을 보다 더 높일 수 있게 된다.In addition, the second injection unit 50 receiving the cooling water of the cooling unit 10 injects water into the tube shell 40. As such, the cooled water of the second spray unit 50 reduces the temperature of the coolant passing through the tube shell 40 to increase heat exchange efficiency, and thus heat exchange is performed through water instead of air. It is possible to further increase the heat exchange efficiency.

이와 같이 본 발명은 제1분사부(30)를 통해 냉각된 물을 증기에 직접 분사하고, 튜브쉘(40)에 제2분사부(50)를 통해 냉각된 물을 직접 분사하여 열교환효율을 높이게 되며, 과도한 증기의 응축으로 과진공이 발생할 우려가 있다.As such, the present invention directly sprays the water cooled through the first spray unit 30 to the steam, and directly sprays the water cooled through the second spray unit 50 to the tube shell 40 to increase heat exchange efficiency. There is a risk of excessive vacuum due to excessive steam condensation.

이러한 과진공이 발생하면 상기 증기터빈의 내측에 흐르는 증기에 과팽창이 일어나 효율이 저하될 수 있으며, 이를 방지하기 위해 상기 튜브쉘(40)에 흐르는 냉각수의 양을 종래에 비하여 보다 적게 사용해야 한다.When such over-vacuum occurs, overexpansion may occur in the steam flowing inside the steam turbine, and the efficiency may be reduced. In order to prevent this, the amount of cooling water flowing through the tube shell 40 should be used less than in the related art.

따라서 본 발명은 냉각수의 사용량을 줄여 발전 제조 원가를 보다 더 절감할 수 있다.Therefore, the present invention can further reduce the production cost of power generation by reducing the amount of cooling water used.

상기와 같이 제1분사부(30)와 제2분사부(50)에서 분사된 물과, 증기가 응축되어 환원된 물은 상기 복수펌프(61)를 통해 탈기부(62)로 일부 공급되며, 일부는 상기 냉각부(10)에 다시 공급되어 냉각된 후 상기 제1분사부(30)와 제2분사부(50)를 통해 분사되어 증기를 응축시키는 작용을 하게 된다.As described above, the water injected from the first injection unit 30 and the second injection unit 50 and the water reduced by condensation of steam are partially supplied to the degassing unit 62 through the plurality of pumps 61. A part is supplied to the cooling unit 10 again to be cooled and then injected through the first injection unit 30 and the second injection unit 50 to condense steam.

이와 같이 본 발명은 별도의 냉각부(10)를 두어 여름철 등 냉각수의 온도가 상승한 경우, 그 냉각수를 냉각시켜 증기의 응축에 사용하게 됨으로써, 열교환 효율의 저하를 방지하여 저압터빈(20)의 후단 압력이 상승하는 것을 방지할 수 있게 된다.Thus, in the present invention, when the temperature of the cooling water rises, such as in summer, when the cooling unit 10 has a separate cooling unit 10, the cooling water is cooled and used for condensation of steam, thereby preventing the lowering of the heat exchange efficiency, and thus the rear end of the low pressure turbine 20. It is possible to prevent the pressure from rising.

도 1은 종래 증기터빈의 복수기의 구성도이다.1 is a configuration diagram of a condenser of a conventional steam turbine.

도 2는 본 발명 증기터빈의 복수기 바람직한 실시예의 구성도이다.Figure 2 is a block diagram of a preferred embodiment of the condenser of the steam turbine of the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10:냉각부 20:저압터빈10: cooling unit 20: low pressure turbine

30:제1분사부 40:튜브쉘30: first injection part 40: tube shell

41:튜브 50:제2분사부41: tube 50: second injection unit

61:복수펌프 62:탈기부61: multiple pump 62: degassing part

Claims (3)

물을 냉각시켜 공급하는 냉각부;A cooling unit cooling and supplying water; 상기 냉각부의 냉각된 물을 공급받아 저압터빈의 후단으로 배출되는 증기에 직접 분사하여 그 증기를 물로 응축시키는 제1분사부;A first injection unit which receives the cooled water of the cooling unit and directly sprays the steam discharged to the rear end of the low pressure turbine to condense the steam into water; 상기 저압터빈의 하부측에서 냉각수가 흐르는 다수의 튜브를 포함하여, 상기 증기를 응축시키는 튜브쉘;A tube shell condensing the steam, including a plurality of tubes through which cooling water flows from the lower side of the low pressure turbine; 상기 냉각부의 냉각된 물을 상기 튜브쉘의 상부에 분사하여 열교환 효율을 향상시키는 제2분사부를 포함하는 증기터빈의 복수기.The steam turbine of claim 2 including a second injection unit for improving the heat exchange efficiency by spraying the cooling water of the cooling unit on the upper portion of the tube shell. 제1항에 있어서,The method of claim 1, 상기 냉각부는,The cooling unit, 상기 제1분사부와 상기 제2분사부에서 분사된 물과, 상기 증기가 응축되어 환원된 물의 일부를 순환시켜 열교환을 통해 냉각시킨 후, 상기 제1분사부 및 제2분사부로 다시 공급하는 것을 특징으로 하는 증기터빈의 복수기.Circulating a portion of the water sprayed from the first and second spray units and the water condensed and reduced by the steam to cool through heat exchange, and then supplying the water to the first spray unit and the second spray unit again. The steam turbine condenser characterized by the above-mentioned. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 제1분사부는,The first injection unit, 상기 저압터빈의 후단부에 다수의 노즐이 원형으로 배치된 구조가 다단으로 마련되어 있으며,The rear end of the low-pressure turbine is provided with a multi-stage structure in which a plurality of nozzles are arranged in a circular shape, 상기 저압터빈과 가장 가까운 원형 배치 구조의 노즐들은 그 저압터빈측으로 물이 유입되지 않도록 경사지게 설치되는 것을 특징으로 하는 증기터빈의 복수기.The nozzles of the circular arrangement structure closest to the low-pressure turbine are installed inclined so that water does not flow into the low-pressure turbine side.
KR1020090011438A 2009-02-12 2009-02-12 Steam condenser for steam turbine KR20100092182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090011438A KR20100092182A (en) 2009-02-12 2009-02-12 Steam condenser for steam turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090011438A KR20100092182A (en) 2009-02-12 2009-02-12 Steam condenser for steam turbine

Publications (1)

Publication Number Publication Date
KR20100092182A true KR20100092182A (en) 2010-08-20

Family

ID=42757116

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090011438A KR20100092182A (en) 2009-02-12 2009-02-12 Steam condenser for steam turbine

Country Status (1)

Country Link
KR (1) KR20100092182A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101879533B1 (en) 2017-03-07 2018-07-17 두산중공업 주식회사 Steam turbine having a structure for preventing counterflow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101879533B1 (en) 2017-03-07 2018-07-17 두산중공업 주식회사 Steam turbine having a structure for preventing counterflow

Similar Documents

Publication Publication Date Title
US9220996B2 (en) Jet type condenser
US7640724B2 (en) System and method for improving the heat rate of a turbine
US8220266B2 (en) Condenser for power plant
JP2007107814A (en) Air-cooled condenser
KR101058430B1 (en) Water supply pumping system for power station which uses vapor pressure
US8267639B2 (en) Systems and methods for providing compressor extraction cooling
CN103282720B (en) Utilize the automatic water-supply formula steam generator of steam pressure
US7827792B2 (en) Refrigerant cooled main steam condenser binary cycle
KR20100092182A (en) Steam condenser for steam turbine
KR20100068568A (en) Power generation system using waste heat of ship engines
KR100678705B1 (en) Waste heat recovery system for Steam power plant
JP5643539B2 (en) Working fluid flow deviation
CN201605320U (en) Circulation cooling device of vacuum coating machine for producing lenses
CN102650218B (en) Turbine generator matched with evaporative hydrogen cooling system
JP6049565B2 (en) Geothermal turbine
US20160271519A1 (en) Vacuum Condenser
JP7288413B2 (en) Power plant steam cooling control system and power plant steam cooling equipment
JP2012193883A (en) Direct contact condenser
CN214945267U (en) Furnace water circulating pump motor cooling device
US20090288415A1 (en) Method for Warming-Up a Steam Turbine
CN1704562A (en) Double-case compound jet condenser and dry-wet combined cooling tower for turbo-generator set
CN112879117B (en) System and method for recycling waste heat of fixed continuous exhaust of thermal power plant by using hot press
CN105041394A (en) Power generation system and running method thereof
CN111023617A (en) Device and method for cooling dead steam cooling water based on refrigeration mode
JP6003448B2 (en) Steam generator

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application