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1. 发明专利

JPH0561554B2 失效
公开(公告)号：JPH0561554B2
公开(公告)日：1993-09-06
申请号：JP3230484
申请日：1984-02-24
申请人： HITACHI LTD
发明人： YAMAZAKI MASAHIRO , ISHIZU HISAZUMI , OKABE MICHIMASA
IPC分类号： F25J3/04

2. 发明专利

JPH0529925B2 失效
公开(公告)号：JPH0529925B2
公开(公告)日：1993-05-06
申请号：JP10205282
申请日：1982-06-16
申请人： HITACHI LTD
发明人： TASAKA YASUO , OKABE MICHIMASA
IPC分类号： G05D7/00 , G05B11/40 , G05D7/06

3. 发明专利

JPH055521B2 失效
公开(公告)号：JPH055521B2
公开(公告)日：1993-01-22
申请号：JP1513284
申请日：1984-02-01
申请人： HITACHI LTD
发明人： YOSHIMATSU YUKYOSHI , ODA CHIKAO , OKABE MICHIMASA
IPC分类号： B01D3/22 , B01D53/18 , B01J10/00

4. 发明专利

JPH02283999A SUBCOOLING DEVICE OF HIGH-PRESSURE LOW-TEMPERATURE FLUID PUMP 失效
公开(公告)号：JPH02283999A
公开(公告)日：1990-11-21
申请号：JP10005389
申请日：1989-04-21
申请人： HITACHI LTD
发明人： HOSOKAWA JUNICHI , OKABE MICHIMASA , ISHIZU HISAZUMI
IPC分类号： F17C5/02 , F17C7/00
摘要： PURPOSE:To reduce filling loss, prevent gasification in a pump, and continue the stable operation of the pump by forming pump suction piping in a double pipe connecting blow piping from a pump to one end of outer piping, opening the other end of it to the atmosphere, and carrying out the supercooling work of pump suction fluid with pump blowing fluid. CONSTITUTION:After low temperature fluid stored in a low temperature fluid tank 1 is pressurized by a low temperature fluid pimp 2, it is heated to a normal temperature by an evaporator 4 to fill a bomb at a filling stand 5. Since the fluid is gasified in the cylinder of the low temperature fluid pump 2, a part of it is blown under a gas/liquid mixing condition to prevent any defective gas accumulation. The blowing fluid is fed to the outer piping of a double pipe 3 provided at a pump suction part, and by thermally expanding it under the atmosphere, it is kept in a subcooled condition of 5 to 10 deg.C and is heat- exchanged with pump suction fluid to cool the outer piping. It is thus possible to reduce the loss at the time of filling and continue the stable operation of a pump, because the pump suction fluid is supercooled by the pump blowing fluid.

5. 发明专利

JPH01247980A REMOVAL OF CARBON MONOXIDE IN NITROGEN PRODUCING DEVICE 失效
公开(公告)号：JPH01247980A
公开(公告)日：1989-10-03
申请号：JP7434888
申请日：1988-03-30
申请人： HITACHI LTD
发明人： ISHIZU HISAZUMI , OKABE MICHIMASA
IPC分类号： F25J3/04 , F25J3/08
摘要： PURPOSE:To produce high-purity nitrogen, by a method wherein a sub- fractionating tower, accommodating a reboiler, is installed to effect heat exchange between circulating liquid of liquid nitrogen in the intermediate part of a fractionating tower and material air in the reboiler and effect the fractionating separation of nitrogen from carbon monoxide. CONSTITUTION:The pressure of material air is risen by a material air compressor 1 and the material air is guided to an adsorption tower 2 where moisture and carbon dioxide are removed by adsorption. The material air, discharged out of the adsorption tower 2, is cooled by a heat exchanger 3 and enters into a fractionating tower 4 in a condition that one part of it is liquefied. Liquid nitrogen is sent into the top of a sub-fractionating tower 7 to make it the circulating liquid of the sub-fractionating tower 7. The liquid nitrogen is supplied to a reboiler 8, installed at the bottom of the sub-fractionating tower 7 to effect heat exchange in the reboiler 8 and evaporate the liquid nitrogen in the bottom of the tower 7 whereby ascending gas is generated. Nitrogen gas, not containing carbon monoxide in the top of the sub-fractionating tower 7, is sent into the fractionating tower 4 through a conduit 12, then, product nitrogen gas, not containing carbon monoxide, is collected through the conduit 9.

6. 发明专利

JPH0140270B2 失效
公开(公告)号：JPH0140270B2
公开(公告)日：1989-08-28
申请号：JP2160684
申请日：1984-02-10
申请人： HITACHI LTD
发明人： TAKASUGI HIFUMI , YAMAZAKI MASAHIRO , OKABE MICHIMASA
IPC分类号： F25J3/04

7. 发明专利

JPS649554B2 失效
公开(公告)号：JPS649554B2
公开(公告)日：1989-02-17
申请号：JP15077982
申请日：1982-09-01
申请人： HITACHI LTD
发明人： TASAKA YASUO , OKABE MICHIMASA
IPC分类号： F25J3/04

8. 发明专利

JPS62194176A METHOD OF SUPPLYING NITROGEN LIQUEFIER WITH NITROGEN GAS 失效
公开(公告)号：JPS62194176A
公开(公告)日：1987-08-26
申请号：JP3298686
申请日：1986-02-19
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： NAKAMURA HIROHIKO , OKABE MICHIMASA
IPC分类号： F25J1/00

9. 发明专利

JPS60152880A DEVICE FOR REMOVING OXYGEN 失效
公开(公告)号：JPS60152880A
公开(公告)日：1985-08-12
申请号：JP709184
申请日：1984-01-20
申请人： HITACHI LTD , HITACHI SANKI ENG
发明人： SOMEYA KAZUO , KITA OSAMU , OKABE MICHIMASA , MIMAKI YUKIHIRO
IPC分类号： B01D53/00 , B01D53/26 , F25J3/08

10. 发明专利

JPS5921977A Method of controlling temperature of fluid to be heated 失效
标题翻译：控制加热液体温度的方法
公开(公告)号：JPS5921977A
公开(公告)日：1984-02-04
申请号：JP13031982
申请日：1982-07-28
申请人： Hitachi Ltd
发明人： OKABE MICHIMASA , YAMAZAKI MASAHIRO
IPC分类号： B01D53/04 , B01D53/02 , F25J3/08 , F28F27/00 , G05D23/00 , G05D23/19

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