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    • 2. 发明授权
    • 증기 터어빈의 노즐실 워밍업 구조
    • 用于蒸汽涡轮的喷射室升温结构
    • KR100354354B1
    • 2002-09-28
    • KR1019990045779
    • 1999-10-21
    • 미츠비시 쥬고교 가부시키가이샤
    • 마고시료따로나까노다까시
    • F01D11/00
    • 본발명의목적은, 노즐실과결합되어있는더미링이회전자와접촉하는것을막기위해노즐실전체가균일하게웜업될수 있는, 증기터어빈의부분삽입형노즐실워밍업구조를제공하는것이다. 이러한목적을이루기위해, 노즐실워밍업구조는다음과같은구성을갖는다. 증기입구 (21, 22) 가노즐실 (1) 에우측과좌측에제공된다. 노즐실의내부는리브 (24a, 24b, 24c, 24d) 에의해네개의증기실 (23a, 23b, 23c, 23d) 로분할되어있다. 증기입구 (21, 22) 를통해유입되는주증기는증기실 (23a, 23d) 안으로들어가서도시되지않은상반부노즐을통해증기통로로유출된다. 일반적으로, 주증기는상반부증기실 (23a, 23d) 안으로만들어가고증기실 (23b, 23c) 안으로는들어가지못하므로, 불균일한웜업이이루어지고이에따라노즐실과결합한더미링은불균일한열변형으로인해회전자와접촉하게된다. 본발명에서는, 워밍업증기 (31) 가흐를수 있도록리브 (24a, 24b, 24c, 24d) 에관통공 (2a, 2b, 2c, 2d) 이형성되어있어, 노즐실전체는균일하게웜업될수 있으며또한이로써더미링이회전자와접촉하지않게되며이러한접촉으로야기되는진동도방지된다.
    • 3. 发明公开
    • 증기 터어빈의 노즐실 워밍업 구조
    • 蒸汽涡轮喷射室的结构变化
    • KR1020010037989A
    • 2001-05-15
    • KR1019990045779
    • 1999-10-21
    • 미츠비시 쥬고교 가부시키가이샤
    • 마고시료따로나까노다까시
    • F01D11/00
    • PURPOSE: Warming-up structure of a nozzle chamber of a steam turbine is provided to prevent the generation of vibration due to excessive contacting of a dummy ring with a rotor by uniformly warming up the entire part of a nozzle in a partial-insertion type nozzle chamber. CONSTITUTION: Steam inlets(21,22) are prepared at left and right sides of a nozzle chamber(1). Inside of the nozzle chamber is divided into four steam chambers(23a,23b,23c,23d) by ribs(24a,24b,24c,24d). The main steam flowing in through the steam inlets are guided into the steam chambers(23a,23d) and discharged to a steam path through an upper nozzle. Herein, through holes(2a,2b,2c) are formed in the ribs to let warming-up steam(31) flow. The nozzle chambers are warmed-up uniformly. Therefore, a dummy ring combined with the nozzle chambers are not in contact with a rotor and vibration due to the contacting of the dummy ring with the rotor is prevented.
    • 目的:提供一种蒸汽轮机的喷嘴室的预热结构,以防止由于虚拟环与转子的过度接触而产生的振动,通过在部分插入式喷嘴中均匀地加热喷嘴的整个部分 室。 构成:在喷嘴室(1)的左侧和右侧准备蒸汽入口(21,22)。 喷嘴室内部由肋(24a,24b,24c,24d)分成四个蒸汽室(23a,23b,23c,23d)。 通过蒸汽入口流入的主蒸汽被引导到蒸汽室(23a,23d)中,并通过上喷嘴排出到蒸汽通道。 这里,在肋部形成通孔(2a,2b,2c),使暖气蒸汽31流通。 喷嘴室均匀加热。 因此,与喷嘴室组合的虚拟环不与转子接触,并且防止了由于虚设环与转子的接触而产生的振动。
    • 4. 发明公开
    • 고압과 중간압 증기터빈의 가요성 유입관
    • 高压和中压蒸汽涡轮机的柔性入口管
    • KR1020010037991A
    • 2001-05-15
    • KR1019990045783
    • 1999-10-21
    • 미츠비시 쥬고교 가부시키가이샤
    • 마고시료따로나까노다까시
    • F01D25/08
    • PURPOSE: A flexible inlet pipe of a high pressure and intermediate pressure steam turbine is provided to prevent the temperature increase of a casing by refrigerating a steam inlet pipe using steam. CONSTITUTION: A casing(11) of a steam turbine has a main steam inlet pipe(14) and a reheated steam inlet pipe(1) integrated with the casing. Main steam(30) flows into a high pressure turbine unit(17) through an inlet pipe(14), and reheated steam(31) flows into an intermediate pressure turbine unit(19) through another inlet pipe(1). Then, a rotor(12) is driven. A double pipe portion(2) is prepared in the inlet pipe(1) to form an annular groove(3). An expanded diameter portion(4) is prepared in the lower end of the double pipe portion. Since vertical sliding is performed between the expanded diameter portion and a flange(5) fixed in a heat shielding unit(21), thermal extension is absorbed. Low temperature steam flows into the annular groove from a space(23) in the casing through a hole and circulates in the annular groove. Thereafter, the low temperature steam flows out to a steam path of the intermediate pressure turbine unit. Therefore, the inside of the annular groove is refrigerated and temperature increase of the casing is prevented.
    • 目的:提供高压和中压蒸汽轮机的柔性入口管,以通过使用蒸汽冷却蒸汽入口管来防止外壳的温度升高。 构成:蒸汽涡轮机的壳体(11)具有与壳体一体的主蒸汽入口管(14)和再热蒸汽入口管(1)。 主蒸汽(30)通过入口管(14)流入高压涡轮单元(17),再加热蒸汽(31)通过另一入口管(1)流入中压涡轮单元(19)。 然后,驱动转子(12)。 在入口管(1)中制备双管部分(2)以形成环形槽(3)。 在双管部的下端准备扩径部(4)。 由于在扩径部与固定在隔热单元(21)上的凸缘(5)之间进行纵向滑动,所以热扩展被吸收。 低温蒸汽通过孔从壳体中的空间(23)流入环形槽,并在环形槽中循环。 此后,低温蒸汽流出到中压涡轮机单元的蒸汽路径。 因此,环形槽的内部被冷藏,并且防止了壳体的温度升高。
    • 6. 发明公开
    • 증기 터빈 내부의 누출 저감 구조
    • 用于减少蒸汽涡轮机蒸汽泄漏的结构
    • KR1020010037988A
    • 2001-05-15
    • KR1019990045778
    • 1999-10-21
    • 미츠비시 쥬고교 가부시키가이샤
    • 마고시료따로나까노다까시다나까고지
    • F01D11/00
    • F01D11/001F01D25/24F05D2240/55
    • PURPOSE: Leakage reduction structure for a steam turbine is provided to prevent the degradation in the performance of a steam turbine by preventing the leakage of high pressure steam from a dummy ring to an intermediate pressure side and recovering the steam leaked. CONSTITUTION: A pressure control valve(21) is installed in the middle of an external pipe(20). One end of the pipe is communicated with a point(X) of a sealing portion of a dummy ring(10) while the other end of the pipe is communicated with a point(Y) of a steam path of a high pressure turbine unit(3). According to the external pipe, the steam leaked to an intermediate pressure turbine unit(4) flows to the middle of the steam path of the high pressure turbine unit from the high pressure turbine unit by passing through the sealing portion of the dummy ring. The steam leaked is recovered in the high-pressure turbine unit. Therefore, leakage amount is reduced and performance degradation of the high-pressure turbine unit is prevented.
    • 目的:提供一种蒸汽轮机的泄漏减少结构,以防止高压蒸汽从虚拟环泄漏到中间压力侧并回收蒸汽泄漏的汽轮机的性能下降。 构成:压力控制阀(21)安装在外管(20)的中间。 管的一端与虚拟环(10)的密封部分的点(X)连通,而管的另一端与高压涡轮机组的蒸汽通路的点(Y)连通( 3)。 根据外管,泄漏到中压涡轮机单元(4)的蒸汽通过高温涡轮单元的蒸汽路径的中间通过假环的密封部分流动。 泄漏的蒸汽在高压涡轮机组中被回收。 因此,泄漏量降低,并且防止高压涡轮机单元的性能下降。