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1. 发明专利

JP2001116205A METHOD FOR ASSEMBLING FEED WATER HEATER 失效
公开(公告)号：JP2001116205A
公开(公告)日：2001-04-27
申请号：JP29924199
申请日：1999-10-21
申请人： TOSHIBA CORP
发明人： NAKAJIMA SHOJI , OZEKI TOSHIAKI , SAKURADA SHIGERU , TAKAHASHI MASAKI
IPC分类号： F22D1/32
摘要： PROBLEM TO BE SOLVED: To provide a new assembling method for a feed water heater to eliminate a need for a work to repair a building and peripheral equipment when an existing feed water heater already installed is replaced with new fresh feed water heater. SOLUTION: An already installed existing feed water heater is disassembled and its body drum 3a is re-utilized and a newly manufactured water chamber 12 is carried in an installation place, and in the installation place, the two members are integrally welded for assembly. This method, since there is no need to carry out the whole of a large and heavy feed water heater from an installation place or carry it therein, eliminates a need for a work to repair a building and peripheral equipment, interfering with the feed water heater, during carry-out and carry-in, remarkably shortens a term of works required for a work to replace the feed water heater, and eminently reduces the expense required for a replacement work.

2. 发明专利

JP2000111005A METHOD FOR ASSEMBLING FEEDWATER HEATER 失效
公开(公告)号：JP2000111005A
公开(公告)日：2000-04-18
申请号：JP27864398
申请日：1998-09-30
申请人： TOSHIBA CORP
发明人： NAKAJIMA SHOJI , OZEKI TOSHIAKI , OBARA FUMIO , NAKAZAWA TOSHIHIRO , HIRAKATA TOSHIHIRO , KIMURA ISAO
IPC分类号： G21D1/00 , F22D1/00
摘要： PROBLEM TO BE SOLVED: To reduce a removal and recovery of an interference object on a conveying passage and a reinforcement of a floor by manufacturing divided parts cut in round slices from a feedwater heater so that an entire length per one of a feedwater heater becomes a specific value, conveying the parts into a power plant, welding the conveyed parts to connect them and assembling the heater. SOLUTION: Divided parts 1a, 1b and 1c cut in round slices from the water heater 1 are manufactured in a factory. The parts 1a, 1b of the manufactured parts 1a to 1c are constituted of divided by shells 11a, 11b, and the material 1c is constituted from a divided part shell 11c and a water chamber 12 connected to the shell 11c. In this case, the parts are manufactured so that an overall length L of the parts 1a, 1b and an overall length W of the part 1c become within 6 m. After the parts 1a to 1c are conveyed as single parts to an installing place in a power plant by using a small-sized truck or the like, they are welded at the installing place and its vicinity, and the heater 1 is assembled.

3. 发明专利

JPH07127802A STEAM DRUM 失效
公开(公告)号：JPH07127802A
公开(公告)日：1995-05-16
申请号：JP15165293
申请日：1993-06-23
申请人： TOSHIBA CORP
发明人： NEMOTO AKIRA , OZEKI TOSHIAKI
IPC分类号： F22B37/22
摘要： PURPOSE:To enable a stable operation on gas-water mixed fluid generated at an outlet pipe of an economizer to be carried out under a low load of a boiler without generating any unstable state in a drum water level control and a pressure control. CONSTITUTION:A double-pipe part 11 within a feedwater internal pipe is comprised of an inner cylinder 12 and an outer cylinder 13. An inner cylinder 12 having through-pass holes 12a is branched from a feedwater internal pipe 9 and connected to it. The outer cylinder 13 having through-pass holes 13a is coaxially arranged outside the inner cylinder 12.

4. 发明专利

JPH05322456A CONDENSING DEVICE 失效
公开(公告)号：JPH05322456A
公开(公告)日：1993-12-07
申请号：JP12656092
申请日：1992-05-20
申请人： TOSHIBA CORP
发明人： MATSUO YOSHIYUKI , SAKURADA SHIGERU , OZEKI TOSHIAKI , HYODO NORIMASA
IPC分类号： F28B9/08
摘要： PURPOSE:To prevent a cooling tower from being damaged by a method wherein a collecting means for collecting drain water dispersed from an upper surface of a bottom plate and guiding it downwardly is arranged near a bottom plate of a communicating barrel in a system in which barrel parts of at least two condensing devices are in communication with each other through a connecting barrel. CONSTITUTION:In a condensing device in which barrels of two condensing units communicate with and are connected to each other through a communicating barrel 20 having an opening above a pipe bundle of each of condensing units, steam Fa discharged from a turbine flowed into an upper part of the condensing unit is flowed downwardly, cooled while passing through a group of cooling pipes and condensed. In this case, a louver 22 acting as a collecting means for collecting drain water dispered from an upper surface of a bottom plate and feeding it downwardly is arranged near the bottom plate of the communicating barrel 20. This louver 22 is arranged over an entire region of the opening of the communicating barrel 20 and further welded and fixed to reinforcing ribs 23 of the barrel of the condensing units arranged along a wall surface 21 of a barrel part of the condensing unit. With such an arrangement, liquid droplets dispersed are prevented from being directly struck against the cooling pipe and damage of the cooling pipe is prevented.

5. 发明专利

JPS62294802A MOISTURE-SEPARATING REHEATER CONTROLLER 失效
公开(公告)号：JPS62294802A
公开(公告)日：1987-12-22
申请号：JP3696786
申请日：1986-02-21
申请人： TOSHIBA CORP
发明人： OZEKI TOSHIAKI , SATO KENJI
IPC分类号： F22G5/00

6. 发明专利

JPS61138008A Moisture separating heater 失效
标题翻译：水分离加热器
公开(公告)号：JPS61138008A
公开(公告)日：1986-06-25
申请号：JP25936484
申请日：1984-12-10
申请人： Toshiba Corp
发明人： SATO KENJI , OZEKI TOSHIAKI
IPC分类号： F22G3/00

7. 发明专利

JPS58202013A Apparatus for separating moisture 失效
标题翻译：用于分离水分的装置
公开(公告)号：JPS58202013A
公开(公告)日：1983-11-25
申请号：JP8427782
申请日：1982-05-19
申请人： Toshiba Corp
发明人： OZEKI TOSHIAKI , MIURA YOSHIHARU
IPC分类号： B01D46/00 , G21D1/00 , G21D1/02
CPC分类号： Y02E30/40
摘要： PURPOSE: To remove the moisture of steam self-evaporated from a drain tank, by providing a balance duct communicated with the drain tank and opened to the sides of a left and a right separation elements on the bottom plate of a distribution chamber provided ldirectly above the drain tank provided to a main body barrel so as to be suspended downwardly from the bottom wall thereof.
CONSTITUTION: On the bottom plate of a steam distribution chamber 10 provided directly above the drain tank 13 provided to a main body barrel 1 so as to be suspended downwardly from the bottom wall thereof, a balance duct 17 communicated with the drain tank 13 and opened to the sides confronting to a left and a right separation elements 3 is provided. When the intenal pressure of the main body barrel 1 is abruptly lowered by the generation of an abnormal accident, the greater part of steam self-evaporated from the drain tank 13 is flowed into the balance duct 17 and subsequently passed through the separation elements while moisture therein is removed to be flowed out from a steam outlet 14. By this mechanism, the deterioration of functions of machineries in other systems is positively prevented.
COPYRIGHT: (C)1983,JPO&Japio
摘要翻译：目的：通过提供与排水箱连通的平衡管道，从排水箱中自动蒸发的蒸汽的水分开放到分配室底板上的左右分离元件的侧面排水槽设置在主体筒体上，以便从其底壁向下悬挂。构成：在设置在主体筒1上的排水槽13的正上方设置有从其底壁向下悬挂的蒸汽分配室10的底板上，与排水槽13连通并打开的平衡管17 提供面向左右分离元件3的侧面。当主体筒1的内部压力由于异常事故的产生而突然下降时，从排水槽13自身蒸发的大部分蒸汽流入平衡管道17中，随后通过分离元件其中被从蒸汽出口14排出。通过这种机制，可以有效地防止其他系统中机械功能的恶化。

8. 发明专利

JP2002081612A FEED WATER HEATER 失效
公开(公告)号：JP2002081612A
公开(公告)日：2002-03-22
申请号：JP2000266045
申请日：2000-09-01
申请人： TOSHIBA CORP
发明人： OZEKI TOSHIAKI , SHIRAKI YOSHIHIRO , KAMIJO SATOSHI
IPC分类号： F22D1/32 , F22D1/00
摘要： PROBLEM TO BE SOLVED: To provide a feed water heater which can maintain high performance even when the capacity of a power generating plant is increased or the condition of heating steam is strict. SOLUTION: The desuperheating section 29 of the feed water heater has two entrances 36 at its central part so that heating steam may flow from the entrances 36 to both ends of the section 29. The condensing section of the feed water heater is provided with a short pass preventing plate both ends of which are inserted into the slit sections of a lower pipe group and which covers the top of a bent pipe at its central part. A drain output seat is provided at the central position of the main body barrel of the heater in the vertical direction and a drain outlet seat guide plate which guides drains to the drain outlet seat is installed in a drain cooling section.

9. 发明专利

JP2000304464A CONDENSER 失效
公开(公告)号：JP2000304464A
公开(公告)日：2000-11-02
申请号：JP10805499
申请日：1999-04-15
申请人： TOSHIBA CORP
发明人： OZEKI TOSHIAKI , SATO KENJI , SHINTANI TADAFUMI
IPC分类号： F28B1/02 , F28B9/08 , F28F19/00
摘要： PROBLEM TO BE SOLVED: To provide a condenser capable of preventing corrosion of a steam cooling pipe or the like, which is caused by condensate having high corrosiveness. SOLUTION: An enclosing apparatus 20 which encloses the central space of a steam cooling tube bank 4 comprises a pair of enclosures 28 of symmetrical location. The enclosure 28 consists of an upper portion enclosing plate 20A having an inclined face 21 which inclines downward from the inside to the outside, and a bottom portion enclosing plate 20B located below the upper enclosing plate. The outermost end of the plate 20B is positioned outside of the outermost end of the plate 20A. The lower end of the outermost end of the plate 20A is bonded to the plate 20B to define an inner space 23 and an outer space 24 of the plate 20A. The outermost portion and the innermost portion of the plate 20B are, respectively, set up with an outer weir 22 and an inner weir 6. Further, a communicating opening 8 is formed at the bonding position of the plate 20A and the plate 20B, and a drain opening 7 is formed at the bonding position of the plate 20B of the space 23 side and a tube bundle supporting plate 9.

10. 发明专利

JPH0566094A CONDENSING PLANT 失效
公开(公告)号：JPH0566094A
公开(公告)日：1993-03-19
申请号：JP4543092
申请日：1992-03-03
申请人： TOSHIBA CORP
发明人： MATSUO YOSHIYUKI , SAKURADA SHIGERU , OZEKI TOSHIAKI , HYODO NORIMASA , MATSUKUMA YUJI
IPC分类号： F28B1/02 , F28B9/08
摘要： PURPOSE:To protect the cooling pipe of condenser groups from corrosion attributable to condensed liquid drops in terms of a condensing plate where a plurality of condensers are connected with a communication shell installed to the wall surface on the shell of a condenser main body located at the upper part of said condenser cooling pipes. CONSTITUTION:In a condensing plant where a plurality of condensers 6 are coupled with a communication shell 20 installed to a wall surface 21 on the shell of a condenser main body located at the upper part of condenser cooling pipes, a flow straightening plate 22 is installed to both opening sections 20a of the communication shell while a weir is installed to the edges of a bottom plate 20b on the opening section sides 20a. This construction makes it possible to prevent the dispersion of liquid drops caused by turbine exhaust steam which is collided with the bottom plate 20b of the communication shell 20.

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