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1. 发明专利

JPS6233286A METHOD OF ASSEMBLING TUBE NEST OF CONDENSER 失效
公开(公告)号：JPS6233286A
公开(公告)日：1987-02-13
申请号：JP17233885
申请日：1985-08-07
申请人： HITACHI LTD , HITACHI KIKAI ENG
发明人： SASAKI TAKUYA , KURI HIROTOSHI , KON HIDEKI , NAKAHACHI TAKASHI , IIDA YASUTAKA
IPC分类号： F28B1/00 , F28B1/02
摘要： PURPOSE:To attempt to regenerate a condenser within a short period of time and reduce the shutdown period of a plant by cutting both ends of the main body of a condenser and a fine tube, dividing the tube nest in the direction of the tube length to disassemble the same, removing an internal structure, and loading a tube nest for replacing a all titanium tube having at its both ends a tubular plate and a short drum. CONSTITUTION:A fine tube 13 is cut at its intermediate portion as shown by a fine tube cutting part 22. A drum 4 is cut at both ends as shown by cutting portions 20 and 21. The fine tube 13 is pulled out horizontally toward right and left in a state where it is formed integrally with a water chamber side tube plate 8 and a flashing side tube plate 31, and removed. In a new tube nest 50, a water chamber 32, a water chamber cover 33, and a short drum 35 are formed as an integral structure, and a short drum 34 is mounted on the water chamber side tube plate 30. Further, in a drum 38 to be added to the drum 4 to commensurate with increased part of the tube length of a titanium fine tube 36, a drum expanding and contracting joint 39 absorbing the difference in elongation between the titanium fine tube 36, and the drum 4 is integrally assembled with a short drum 40, and the joint 39 is welded to the drum 4 to be secured thereto so that the renewed tube nest 50 can be easily fitted. On the tube nest 50 pulled into the drum 4 are finally mounted with blocking plates 42 and 43.

2. 发明专利

JPS60243496A COUNTER FOR CLEANING BODY FOR PIPE 失效
公开(公告)号：JPS60243496A
公开(公告)日：1985-12-03
申请号：JP9862684
申请日：1984-05-18
申请人： HITACHI LTD
发明人： MUKAI YASUAKI , OOSHIMA YOSHIKUNI , SASAKI TAKUYA , OOTAKE KATSUMOTO
IPC分类号： F28G1/12
摘要： PURPOSE:To enable a high-accuracy counting with a small-type flat construction with high vibration resistance and airtightness, by a construction wherein a flat plate form main body of a cleaning body counter is provided with a counting hole for the cleaning bodies, and a cleaning body sensor is buried in the main body with an end part thereof fronting the counting hole. CONSTITUTION:The main body 11 of the washing body counter is provided with the counting hole 12 for the cleaning bodies 10. The main body 11 is formed from a synthetic resin, a metal or the like in a shape comprising a tetragonal part and a semicircular part, and the tetragonal part is provided with a stepped part 11' for fitting terminals. The main body 11 is disposed between flanges 19, 19' provided at end parts of pipes 18, 18' to be cleaned, and fitted in place by bolts 20. The cleaning bodies 10 flow from the pipe 18 into the pipe 18' together with a fluid, and when passing through the hole 12, they are counted by a cleaning body sensor having a transmitter 13 and a receiver 14. Accordingly, the entire body of the counter can be made to be small in size and flat in shape, the vibration resistance and airtightness can be enhanced, and a higher counting accuracy can be contrived.

3. 发明专利

JPS60223997A WASHING BODY COLLECTING DEVICE FOR TUBE TYPE HEAT EXCHANGER 失效
公开(公告)号：JPS60223997A
公开(公告)日：1985-11-08
申请号：JP8007184
申请日：1984-04-23
申请人： HITACHI LTD
发明人： ODA SHIGEO , SASAKI TAKUYA , OOTAKE KATSUMOTO , MUKAI YASUAKI
IPC分类号： F28G1/12 , F28G1/16
摘要： PURPOSE:To reduce blockaded area in flow path as well as the operation cost of the tube type heat exchanger, eliminate generation of bias flow and improve the collecting performance of the device by a method wherein the blind plate of the washing body collecting device is replaced by a lattice. CONSTITUTION:Fixed lattices 52B are provided in gaps between a swingable collecting lattice and the inner wall surface of a pipe. As a result, the pressure loss of fluid is decreased and the cost upon operating the tube type heat exchanger may be reduced. Adhesion of suspended matter, algas and marine organisms in circulating water may be prevented by effecting backwash of the fixed lattice 52B periodically with pressure water injected from a pressure water injection pipe 55B. According to this effect, reduction of washing body collecting performance due to adhesion may be avoided.

4. 发明专利

JPS60213799A Dust removing strainer for heat exchanger 失效
标题翻译：用于换热器的除尘过滤器
公开(公告)号：JPS60213799A
公开(公告)日：1985-10-26
申请号：JP6904284
申请日：1984-04-09
申请人： Hitachi Ltd
发明人： TAKEUCHI MITSUO , SASAKI TAKUYA
IPC分类号： F28F19/00 , F28B9/00 , F28B9/04 , F28F19/01
CPC分类号： F28F19/01
摘要： PURPOSE:To permit to remove foreign substances in cooling water surely and continuously even during the operation of the heat exchanger by a method wherein the inside of the strainer is divided into two divisions and a discharging pipe is provided at the bottom of the strainer while a changeover valve, having two sheets of partitionings arranged with an arbitrary angle, is provided at the inlet section thereof. CONSTITUTION:The foreign substances in the cooling water are accumulated on the inner surface of the strainer 11. When clogging is generated in the strainer 11, the changeover valve 13 is switched to the side of a chamber A and the chamber A side may be intercepted by one partitioning while the chamber A may be partitioned from a chamber B by the other partitioning. Simultaneously, a foreign substance discharging valve 16 is opened, then, the flow of cooling water at the side of the chamber A may be reversed from the outside of the strainer to the inside of the same by the cooling water introduced from the side of the chamber B whereby the foreign substances, adhered to the inner surface of the strainer, are removed and discharged into a cooling water outlet tube through the foreign substance discharging pipe. When the cleaning of the chamber A is finished, the changeover valve 13 is switched to the side of the chamber B and the foreign substances in the chamber B side may be removed by intercepting the chamber B side and opening the foreign substance discharging valve 17.
摘要翻译：目的：即使在热交换器运行期间，也可以通过将过滤器的内部分成两部分并且在过滤器的底部设置有排出管的方法来允许在冷却水中确定地连续地除去异物，在其入口部分设置有具有任意角度排列的两片隔板的切换阀。构成：冷却水中的异物积聚在过滤器11的内表面上。当在过滤器11中产生堵塞时，转换阀13切换到室A侧，并且室A侧可能被截断通过一个分隔，而腔室A可以通过另一个分隔与腔室B分隔开。同时，异物排出阀16打开，然后，通过从侧面引入的冷却水，可以使室A侧的冷却水的流动从过滤器的外部向其内侧反转由此，粘附到过滤器的内表面的异物被排出并通过异物排出管排出到冷却水出口管中。当室A的清洁完成时，切换阀13切换到室B的侧面，并且通过拦截室B侧并打开异物排出阀17可以除去室B侧的异物。

5. 发明专利

JPS6080081A PREVENTION OF ADHESION OF MARINE ORGANISM 失效
公开(公告)号：JPS6080081A
公开(公告)日：1985-05-07
申请号：JP18704283
申请日：1983-10-07
申请人： HITACHI LTD
发明人： SASAKI TAKUYA
IPC分类号： F28B9/00 , F28B9/04 , F28F19/00 , F28F19/01
摘要： PURPOSE:To produce a circumstance not suitable for the living of marine organisms and prevent adhesion of larve floating in sea water by projecting ultraviolet rays against the circumstance, in which the adhesive statin organism are readily living, in the path of cooling water for a condenser. CONSTITUTION:The cooling water is introduced from a cooling water introducing pipe 1, becomes whirling water stream due to the operating angle of an inlet valve 2 and enters into the casing of a foreign substance removing device. The cooling water, whose dust is removed, is introduced into the entrance water chamber 5 of a condenser through the inlet pipe 4 of the condenser. The cooling water passes through the fine tubes 6 of the condenser and arrives at an outlet water chamber 7. The cooling water passes the outlet pipe 8 of the condenser and arrives at the cooling water outlet pipe 10 through a ball collector 9 for washing the fine tubes in the condenser. In case the ultraviolet rays projecting device 20 is attached to the inlet water chamber 5 of the condenser 19, it is attached so that the projecting position is changeable and, thus, the adhesion of marine organisms may be prevented.

6. 发明专利

JPS58173383A METHOD AND CONSTRUCTION FOR OVERHAUL, TRANSPORTATION AND ASSEMBLING OF CONDENSER 失效
公开(公告)号：JPS58173383A
公开(公告)日：1983-10-12
申请号：JP5370682
申请日：1982-04-02
申请人： HITACHI LTD
发明人： SASAKI TAKUYA , MIYAI MASAHIKO , SUMIYA YOSHIO , ISHIDA KEIZOU , BAN KUNIYOSHI , HOSHINO YOSHIYUKI
IPC分类号： F28B1/00 , B23P21/00
摘要： PURPOSE:To facilitate the transportation and assembling by a structure wherein assembling surface plates, which are formed in corresponding to the divided forms of the condenser, are fixed on the bottom of the condenser and at the same time rolling members for transfer are mounted to the assembling surface plates. CONSTITUTION:Surface plates 3 are respectively formed in the form of a frame by combining two longitudinal members 3a and five transverse members 3b. Five connecting members 3c are detachably laid between said surface plates 3. A large number of the rolling members 4 are mounted on the under surfaces of the longitudinal members 3a at fixed intervals. The shell main body of a condenser is assembled on the assembling surface plates 3 in a longitudinally divided form. After that, tube nests 9 are composed of by inserting fine tubes 8 in tube supporting plates 7 in order to assemble two long blocks 1 and 2. After assembling the two blocks 1 and 2, the connecting members 3c of the surface plates are removed and the two assembling surface plates 3 are separated from each other. Consequently, the long block 1 and the long block 2 are in the state to be carried separately. Because the rolling members 4 are mounted on the under surfaces of the surface plates 3, the long blocks 1 and 2 can be easily transferred.

7. 发明专利

JPS58168889A PROTECTIVE METHOD FOR CONDENSER UNDER TRANSPORTATION 失效
公开(公告)号：JPS58168889A
公开(公告)日：1983-10-05
申请号：JP4892882
申请日：1982-03-29
申请人： HITACHI LTD
发明人： ISHIDA KEIZOU , MIYAI MASAHIKO , SASAKI TAKUYA , SUMIYA YOSHIO , BAN KUNIYOSHI , HOSHINO YOSHIYUKI
IPC分类号： F28B1/00
摘要： PURPOSE:To contrive to save materials and shorten the procedure steps, by a method wherein plate materials for protecting cooling pipes are fitted when transporting a steam turbine condenser in partitions, and the plate materials are utilized as assembling and scaffolding materials at the job site. CONSTITUTION:The cooling pipes 4 having an extremely small wall thickness are transported in the condition of being covered by protective plates 8. By providing a supporting plate 3 with a cutout for a longitudinal reinforcement 7, the protective plates 8 can be placed on lower flanges of the reinforcement 7 when fitting reinforcing pipes 5, 5' at the job site, and the protective plates 8 can be used also as protective plates at the time of transportation, by the fitting operation. Accordingly, the protective plates for the cooling pipes which plates are used at the time of transporting the cooling pipes can be used for protecting the cooling pipes and as scaffolding plates when fitting an upper shell.

8. 发明专利

JPS5878098A CLEANING METHOD AND DEVICE THEREFOR 失效
公开(公告)号：JPS5878098A
公开(公告)日：1983-05-11
申请号：JP17446781
申请日：1981-11-02
申请人： HITACHI LTD
发明人： OOTAKE KATSUMOTO , MIYAI MASAHIKO , SASAKI TAKUYA , MUKAI YASUAKI , TAKAHASHI SANKICHI , OOKOUCHI ISAO
IPC分类号： F22B37/52 , B08B9/053 , F28G1/12 , G21C19/02 , G21F9/00 , G21F9/28
摘要： PURPOSE:To automate cleaning work, when bodies to be cleaned which are circulated in a liquid pipe are cleaned, by counting the number of supplied bodies to be cleaned which are fed to a circulating system, the number of recovered bodies, and the number of normal bodies which are returned to the system, and computing and determing the number of the boides to be supplied based on the counted results. CONSTITUTION:The number of balls, which are washed in the circulating system and returned to a recovery device 13, is counted by a counter 12a. The number of the balls, which are supplied from a recovery device 14 to a circulating water path 2 and the number of the normal balls which are selected by a ball selector 15 and returned to a ball circulating system 11, are counted by a counter 12b. The number of the balls, which are inputted into the recovery devices 14 from a ball inputting device 17, is counted by a counter 12c. The results are inputted into a computation controlling device 100. The controlling device 100 computes the number of balls equired for the cleaning work according to a specified program together with other data, and controls a ball circulating pump 7, the recovery devices 13, 14, and 16, the inputting device 17, the selector 15, a vacuum pump and a pump 18 and 19, and valves 50-63. Thus, the cleaning work can be automated.

9. 发明专利

JPS5714196A CLEANING BALL 失效
公开(公告)号：JPS5714196A
公开(公告)日：1982-01-25
申请号：JP8971480
申请日：1980-06-30
申请人： HITACHI LTD
发明人： KUMAGAI YOSHIO , SASAKI TAKUYA
IPC分类号： F28G1/12 , B08B9/04 , B08B9/053
摘要： PURPOSE:To uniformly remove hard scale adhered to the inside of condenser tube all over the tube nest, by determining the specific gravity of cleaning ball as approximately equal as of the circulating water, and by making the outer diameter of cleaning ball as approximately equal size as of the inner diameter of the condenser tube. CONSTITUTION:The outer diameter of cleaning ball 4 is determined as approximately equal sizes as of the inner diameter of a condenser tube 10, as well as the specific gravity of cleaning ball 14 is adjusted to be as approximately equal as of the circulating water, by adhering carborundum 11 and a matter 12 of which specific gravity is light to the outer surface of a cleaning ball. By this arrangement, the inside of the condenser tube 10 can uniformly be rubbed, so that hard scale adhered to the inside of condenser tube 10 can be removed uniformly from all over the condenser tube nest.

10. 发明专利

JPS5714195A OPERATING SYSTEM OF CLEANING BALL 失效
公开(公告)号：JPS5714195A
公开(公告)日：1982-01-25
申请号：JP8971180
申请日：1980-06-30
申请人： HITACHI LTD
发明人： OOKOUCHI ISAO , TAKAHASHI SANKICHI , MUKAI YASUAKI , OOTAKE KATSUMOTO , SASAKI TAKUYA , MIYAI MASAHIKO
IPC分类号： F28G1/12 , B08B9/053
摘要： PURPOSE:To always maintain necessary number of balls needed to the process of cleaning balls in a ball circulating system, by counting the number of balls to be circulated, the number of worn out balls, and that of the ones to be newly replaced, and by controlling respective valve based on the counting results. CONSTITUTION:The ball circulating pump 7, a collector 8, a selector 20, a water soaker 21, and valves 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, and 60 in front and in the rear of a vacuum pump 22 are controlled, by providing counters 12a, 12b and 12c respectively to each side of the outlet of pump 7 to circulate ball circulating water, of ball selector 20, and of ball supplier 23, by counting the number of balls to be circulated, of worn out balls and of balls to be newly replaced by the counters 12a, 12b and 12c, and by putting the results measured into the processor 100 to calculate the number of balls necessary for cleaning. By these units of equipment, the necessary number of balls needed to the cleaning process in the ball circulating system can always be maintained.

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