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1. 发明专利

JPS6484887A STORAGE FOR HIGH TEMPERATURE WATER 失效
公开(公告)号：JPS6484887A
公开(公告)日：1989-03-30
申请号：JP23049387
申请日：1987-09-14
申请人： NIPPON KOKAN KK
发明人： FUKUHARA TSUGUKAZU , ONOE AKEMASA , TOYABE TAKESHI , FUKUDA SEIJI
IPC分类号： B65D88/34
摘要： PURPOSE:To surely prevent a stress-corrosion-crack of a tank and pipes etc., due to dissolved oxygen gas in high temperature water, by preventing oxygen gas in the air from dissolving into a high temperature water by means of feeding the previously deaerated high temperature water to a tank which is covered by a floating roof on the water in the tank. CONSTITUTION:High temperature water 2 with less dissolved oxygen by previous deaeration is fed into a tank 1 through a conduit pipe 6. Consequently the high temperature water 2 level rises in the tank 1, then the air corresponding to the raised water level according to the fed volume is discharged through a vent-pipe 5 in the air. The high temperature water 2 level lowers in the tank 1 as the water is discharged through a delivery pipe 7. Consequently the air corresponding to the lowered water level according to the delivered volume flows in the tank 1 through the vent-pipe 5. As the high temperature water 2 surface in the tank 1 is covered P by a floating roof 8, oxygen gas dissolved in the high temperature water does not almost increase. Therefore, stress- corrosion-cracks of the tank and pipes etc., due to the dissolved oxygen are surely prevented.

2. 发明专利

JPH01139391A TEMPERATURE RAISING METHOD FOR HOT WATER TANK 失效
公开(公告)号：JPH01139391A
公开(公告)日：1989-05-31
申请号：JP28713287
申请日：1987-11-13
申请人： NIPPON KOKAN KK
发明人： FUKUHARA TSUGUKAZU , ONOE AKEMASA , TOYABE TAKESHI , FUKUDA SEIJI
IPC分类号： B65D90/00
摘要： PURPOSE:To unify the thermal expansion of a tank structure, by having stored water of a normal temperature up to an appropriate level in a hot water tank, and gradually pouring hot water to store into the stored water of a normal temperature. CONSTITUTION:When a hot water is stored in a hot water tank 1, firstly, a flow of water of a normal temperature is given by opening a switching valve 5 and closing 5a; after the water of a normal temperature 3 has been stored up to an appropriate level, a hot water is poured in by closing 5 and opening 5a; thus the temperature of the stored fluid is gradually raised to unify the thermal expansion of the tank structure. For this temperature raising method, a hot water mixing equipment is not necessary; since the simplification of the equipment can be promoted, an economical effect, such as reduction of the construction cost, etc., or an excellent effect of converting an existent tank into a hot water tank easily, can be obtained.

3. 发明专利

JPH0432742A SAMPLING DEVICE FOR LIQUID STORAGE TANK 失效
公开(公告)号：JPH0432742A
公开(公告)日：1992-02-04
申请号：JP13927190
申请日：1990-05-29
申请人： NIPPON KOKAN KK
发明人： TOYABE TAKESHI , ONOE AKEMASA , KURITA KUNIO
IPC分类号： G01N1/16
摘要： PURPOSE:To perform safe, efficient, and secure sampling without placing any load on an operator by fitting and fixing plural sampling pipes at specific positions of a connecting rod fitted with a float atop and providing piping to the bottom part of the tank. CONSTITUTION:The lower end of the connecting rod 4 is pivoted on the tank side plate nearby the bottom plate in the storage tank 1 through a bearing seat 3 and the float 5 is fitted to the upper end. The connecting rod 4 (float 5) moves up and down following up variation in the liquid level in the tank. The three sampling pipes 2 are fixed at the specific positions of the connecting rod 4, e.g. upper, intermediate, and lower positions, so respective sampling openings 2a vary with optional liquid levels at constant ratios. A tape 6 connected to the exit of each pipe 2 through a flexible hose is arranged nearby the bearing seat 3. Then the source valve and sample valve of each tape 6 are opened to discharge the remaining oil in each pipe 2 into another container, and then a sample is sampled from each sampling opening 2a. Thus, the sampling position is accurately known at optional liquid level.

4. 发明专利

JPH039029B2 失效
公开(公告)号：JPH039029B2
公开(公告)日：1991-02-07
申请号：JP2794885
申请日：1985-02-15
申请人： NIPPON KOKAN KK
发明人： TOYABE TAKESHI , OOTOMO SHIGERU , HOSAKA YASUMURA , ODA SHUNICHI
IPC分类号： B65D90/00 , B01F15/02

5. 发明专利

JPH039028B2 失效
公开(公告)号：JPH039028B2
公开(公告)日：1991-02-07
申请号：JP2794785
申请日：1985-02-15
申请人： NIPPON KOKAN KK
发明人： TOYABE TAKESHI , OOTOMO SHIGERU , HOSAKA YASUMURA , ODA SHUNICHI
IPC分类号： B65D90/00 , B01F15/02

6. 发明专利

JPH01167094A DEVICE FOR CIRCULATING AND STIRRING SLURRY 失效
公开(公告)号：JPH01167094A
公开(公告)日：1989-06-30
申请号：JP32524887
申请日：1987-12-24
申请人： NIPPON KOKAN KK
发明人： TOYABE TAKESHI , FUKUHARA TSUGUKAZU , TAKANASHI TOSHIAKI
IPC分类号： C10L1/32 , B65D90/00
摘要： PURPOSE:To homogenize a slurry concentration efficiently without an expensive construction cost by a method wherein a submergible pump having an inlet port at the bottom of a tank is supported so that it can move horizontally on the tank bottom. CONSTITUTION:When a rotary beam 21 is rotated slowly along the circumference by a periphery driving unit 23, and a submergible pump 3 is horizontally moved along the circumference, sediment 41 is gathered to a pump inlet port 3a by a blade 31 located in a cross shape at the inlet port 3a and sucked into the pump inlet port 3a. The sucked sediment 41 is transported to a pump ejection port on a surface level 4a of CWM, injected from a nozzle 33 to the surface level 4a of CWM, and distributed and mixed into the supernatant whose slurry concentration is low. When the submergible pump 3 rotates one rotation on the liquid surface 4a of CWM or when the submergible pump moves by a width of the blade 31 inward or outward in the direction of a radius of a tank 1 by a radius direction driving unit 24, the sediment 41 is sucked in the same manner. The above steps are repeated.

7. 发明专利

JPH0115796B2 失效
公开(公告)号：JPH0115796B2
公开(公告)日：1989-03-20
申请号：JP3465783
申请日：1983-03-04
申请人： NIPPON KOKAN KK
发明人： TOYABE TAKESHI , NUMATA KEN
IPC分类号： F01K1/02 , F01K1/10 , F01K3/02 , F28D20/00

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