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    • 1. 发明专利
    • Power-generation plant operating method
    • 发电厂操作方法
    • JP2014066169A
    • 2014-04-17
    • JP2012211415
    • 2012-09-25
    • Hitachi Ltd株式会社日立製作所
    • WATANABE KENICHISUZUKI SHUNICHIFUKUSHI KAZUNORI
    • F01K9/00B01D39/04C02F1/42F28B9/00
    • PROBLEM TO BE SOLVED: To provide a power-generation plant operating method capable of reducing a starting time of a power-generation plant.SOLUTION: A method of operating a power-generation plant comprising a boiler 1, steam turbines 2, 3, 4 driven by steam generated with the boiler 1, a condenser 6 for condensing the steam exhausted from the steam turbine 4, a condensing system 7 for supplying water condensed by the condenser 6 to the boiler 1, and plural desalination towers 15A and auxiliary desalination towers 15B provided in the condensing system 7 has: a first step of passing water while the desalination towers 15A are filled with a filler B for removing clad when the power-generation plant is started; a second step of measuring a concentration of clad in the water on upstream sides of the desalination towers 15A, 15B; and a third step of passing water while the desalination towers 15A, 15B are filled with ion-exchange resin when the clad concentration in the water on the upstream sides of the desalination towers 15A becomes less than a defined value.
    • 要解决的问题:提供能够减少发电厂的起动时间的发电厂运行方法。解决方案:一种运行发电厂的方法,包括锅炉1,蒸汽轮机2,3,4 由锅炉1产生的蒸汽驱动,用于冷凝从蒸汽轮机4排出的蒸汽的冷凝器6,用于将由冷凝器6冷凝的水供应到锅炉1的冷凝系统7和多个淡化塔15A和辅助淡化塔15B 在冷凝系统7中设置有:当发电厂启动时,在脱盐塔15A填充有用于除去包层的填料B的第一步骤中, 测量脱盐塔15A,15B上游侧的水中包层浓度的第二步骤; 以及当脱盐塔15A的上游侧的水中的包层浓度变得小于规定值时,在脱盐塔15A,15B填充有离子交换树脂的情况下通过水的第三工序。
    • 4. 发明专利
    • PLANT ABNORMALITY DIAGNOSTIC SYSTEM
    • JPH03287017A
    • 1991-12-17
    • JP8834990
    • 1990-04-04
    • HITACHI LTDHITACHI ENG CO LTD
    • KOMATSU AKIHIROSUZUKI SHUNICHISAITO TORUKUMASAKA MASAKI
    • G01D21/00H02J13/00
    • PURPOSE:To find the cause of abnormality of facilities and a countermeasure for it speedily by estimating the cause for each of plural abnormal events if the abnormal events occur and their causes contradict that of a single event. CONSTITUTION:Information which is inputted to an input part 1 is sent to a reasoning part 2 and checked by a logical contradiction check part 5. Then the input information is matched with logical contradiction data and when even part of it is coincident, it is judged that there is a contradiction, thereby actuating an individual cause reasoning part 7. When no coincidence is found, a cause reasoning part 6 is actuated. The cause reasoning part 6 calculates likely causes from past generation frequencies of respective extracted cause items and displays them in the likelihood decreasing order. Further, the individual cause reasoning part 7 does not search for the common cause of the input events and reasons the causes of individual input abnormal events one by one. In such a case, estimated cause and countermeasure plans are displayed one by one, similarly to the case of the reasoning part 6.
    • 6. 发明专利
    • Method and apparatus for regenerating ion exchange resin using in mixed bed type desalting apparatus
    • 在混合床式脱盐装置中再生离子交换树脂的方法和装置
    • JPS6125645A
    • 1986-02-04
    • JP14599084
    • 1984-07-16
    • Hitachi Eng Co LtdHitachi Ltd
    • SUZUKI SHUNICHITAMURA YUHEIKANBAYASHI TAKESHI
    • C02F1/42B01J49/00
    • PURPOSE: To prevent previously the deterioration of desalting performance by feeding only a cation exchange resin and anion exchange resin which are obtained by removing the inactivated resin out of the ion exchange resin subjected to the regenerating treatment into the inside of a desalting tower in the prestage of raw liquid treatment.
      CONSTITUTION: An acid reagent is charged into the regeneration tower 8 through a reagent passing means to subject a cation resin 103 to the regenerating treatment. An alkali reagent is charged into the second regeneration tower 15 through the other reagent passing means to subject an anion resin 101 to the regenerating treatment. After the above-mentioned regenerating treatment of the cation resin 103, a stop valve 12 of a takeout pipe 11 for the cation resin is opened to take out the cation resin 103 out of the first regeneration tower 8 and the cation resin 103 is fed to a storage vessel 18 for an ion exchange resin through the take out pipe 11 and stored therein. On one hand, the anion resin 101 taken out from the second regeneration tower 15 is stored in the storage tank 18.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:为了防止以前的脱盐性能的劣化,只通过将经过再生处理的离子交换树脂除去灭活树脂而获得的阳离子交换树脂和阴离子交换树脂进入前置的脱盐塔的内部 的原液处理。 构成:通过使阳离子树脂103进行再生处理的试剂通过装置将酸性试剂装入再生塔8。 通过其它试剂通过装置将碱性试剂装入第二再生塔15中,使阴离子树脂101进行再生处理。 在阳离子树脂103的上述再生处理之后,打开用于阳离子树脂的取出管11的截止阀12,从第一再生塔8中取出阳离子树脂103,并将阳离子树脂103进料到 用于通过取出管11的离子交换树脂的储存容器18并存储在其中。 一方面,从第二再生塔15取出的阴离子树脂101被储存在储存箱18中。
    • 8. 发明专利
    • LUBRICATING OIL FEEDING SYSTEM
    • JP2000274592A
    • 2000-10-03
    • JP7916199
    • 1999-03-24
    • HITACHI LTDHITACHI ENG CO LTD
    • KAWAKAMI TADAHIROSUZUKI SHUNICHI
    • F16N7/38
    • PROBLEM TO BE SOLVED: To improve the reliability of a pump system by providing a line for feeding lubricating oil from an oil pump set on the shaft end of an operating- side pump to the bearing of a waiting-side pump and a lubricating oil return line from the bearing lubricating oil system of the waiting-side pump to the bearing lubricating oil system of the operating-side pump. SOLUTION: A lubricating oil system to a pump bearing is formed of a forced oil feeding pump 1, an oil pump 3 set on the shaft end of the pump, an oil tank 8 forming the start point of feed of lubricating oil and the end point of return, an auxiliary oil pump 4 set within the tank and driven by an electric motor, and a piping having a cooler 9 and a filter 10 set therein, and it is independent for every pump. This system is further provided with a line 6 for supplying lubricating oil from the oil pump 3 set on the shaft end of an operating-side pump to the bearing of a waiting-side pump and a lubricating oil return line 7 from the bearing lubricating system of the waiting-side pump to the bearing lubricating system of the operating-side pump. According to this, the reliability of the pump system can be improved.
    • 9. 发明专利
    • TRANSFER/REGENERATION SYSTEM FOR ION EXCHANGE RESIN
    • JP2000135444A
    • 2000-05-16
    • JP30983898
    • 1998-10-30
    • HITACHI LTDHITACHI ENG CO LTDIBARAKI HITACHI JOHO SERVICE K
    • NUMAJIRI NOBUYUKISUZUKI SHUNICHI
    • B01J49/00
    • PROBLEM TO BE SOLVED: To enable withdrawal of a mixed resin without installing any resin storage vessel for transferring/receiving an anion exchange resin by placing an anion exchange resin transfer line in the lower part of the anion exchange resin layer, placing a regenerant outflow line within the mixed resin layer, also placing a mixed resin transfer line in the lower part of the mixed resin layer and further placing a cation exchange resin transfer line in the lower part of the cation exchange resin layer, in a regeneration column provided with an anion exchange resin layer, a mixed resin layer and a cation exchange resin layer, of a desalter consisting of a mixed bed desalting column, a regeneration column, or the like. SOLUTION: The anion exchange resin regeneration stage for an anion exchange resin 12 comprises: allowing an alkali regenerant to flow into a regeneration column 2 through an alkali regenerant inflow line 7; concurrently, allowing resin-preservation water for preventing an alkali regenerant from flowing into a cation exchange resin 16, to flow into the regeneration column 2 through an acid regenerant inflow line 9 and to be discharged through a regenerant outflow line 8; and after the regeneration, transferring the completely regenerated anion exchange resin 12 to a mixed bed desalting column 1 through an anion exchange resin transfer line 5. The cation exchange resin regeneration stage for the cation exchange resin 14 comprises: transferring a mixed resin 13 from the regeneration column 2 to a mixed resin vessel 3 through a mixed resin transfer line 10; thereafter, allowing an acid regenerant to flow into the regeneration column 2 through an acid regenerant inflow line 9 and to flow out from the column 2 through a regenerant outflow line 8; and after the regeneration, transferring the completely regenerated cation exchange resin 14 to the mixed bed desalting column 1 through a cation exchange resin transfer line 6.