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1. 发明专利

JPH05309251A 失效
公开(公告)号：JPH05309251A
公开(公告)日：1993-11-22
申请号：JP11612392
申请日：1992-05-08
申请人： OSAKA GAS CO LTD , MITSUBISHI HEAVY IND LTD
发明人： MIZOGUCHI YUKIO , MORI HIDETARO , HAMAMOTO IWAO
IPC分类号： B01F15/00 , F16F15/06 , F16F15/067 , F16J15/34
摘要： PURPOSE:To provide a shaft sealing method and device for a horizontal type stirring tank by which a material in various states such as high viscosity fluid, a slurry material, powder and low viscosity fluid, is stirred and mixed. CONSTITUTION:Empty weight of a shaft seal box 3 including a grand packing 5, etc., is cancelled with a balancer 11. Thus, since contact surface pressure of the sealed part is kept adequately, soundness of a sliding surface between the grand packing and a stirring shaft 2 be kept for a long period and an excellent sealing property be kept safely for a long period.

2. 发明专利

JPH04224368A SHAFT SEALING STRUCTURE 失效
公开(公告)号：JPH04224368A
公开(公告)日：1992-08-13
申请号：JP40761090
申请日：1990-12-27
申请人： OSAKA GAS CO LTD
发明人： MIZOGUCHI YUKIO
IPC分类号： F04D29/10 , F16J15/16 , F16J15/34 , F16J15/54
摘要： PURPOSE:To prevent solids included in transported fluid from intrusion into a seal part in a shaft seal structure for preventing the transported fluid from leaking through a shaft inserting part to a shaft member for turning a drive device to drive the transported fluid including the solids such as pitch. CONSTITUTION:An impeller blade member 12 is integrally fitted to a shaft member 16 in a drive chamber 15 for containing transported fluid (p). Solids and the transported fluid (p) intruding into a space A formed between the impeller blade member 12 and a seal part 18 are discharged in the circumferential direction of the shaft member 16 by a centrifugal force. At least solids are discharged in the circumferential direction of the shaft member 16 by the centrifugal force, so that such solids do not intrude into the seal part and a satisfactory seal is ensured.

3. 发明专利

JPH04224369A SEAL STRUCTURE OF ROTARY SHAFT 失效
公开(公告)号：JPH04224369A
公开(公告)日：1992-08-13
申请号：JP40761190
申请日：1990-12-27
申请人： OSAKA GAS CO LTD
发明人： MIZOGUCHI YUKIO
IPC分类号： F04D29/10 , F16J15/16 , F16J15/34 , F16J15/40
摘要： PURPOSE:To circulate enclosed fluid without providing a special circulating drive means outside a seal part in a rotary shaft sealing structure in which a cooling part for cooling the enclosed fluid is disposed in a section separated from the rotary shaft and the enclosed fluid is circulated between the cooling part and an enclosed fluid filled part close to the rotary shaft. CONSTITUTION:An enclosed fluid drive member 180 is mounted integrally to a rotary shaft 16 to be sealed, so that the enclosed fluid (s) can be circulated without providing separately a special circulating drive means.

4. 发明专利

JPH02283987A FLOW CHANNEL SWITCHING VALVE WITH JACKET 失效
公开(公告)号：JPH02283987A
公开(公告)日：1990-11-21
申请号：JP10639989
申请日：1989-04-25
申请人： OSAKA GAS CO LTD , MISUZU SEIKO KK
发明人： MIZOGUCHI YUKIO , NAKANO KATSUMI
IPC分类号： F16K49/00
摘要： PURPOSE:To improve the efficiency of thermal conduction by providing sectionalized flow channels between a switching valve and a jacket in the main flow channel so as that a thermal medium for heat retaining is introduced from the intake of the sectionalized flow channels and sent to the outlet after flowing through other sectionalized flow channels successively. CONSTITUTION:A valve body 1 provided with three main flow channels 2a-2c can be opened and closed to switch with valve elements operated with handles 12a-12c respectively. A flow channel in which a thermal medium (oil) is flowed is provided between the valve body 1 and a jacket 4, and the channel is divided into sectionalized flow channels 7, 8 with a partition plate 6. The thermal medium is flowed in from the intake pipe provided on the sectionalized flow channel 7 and flowed out from the outlet pipe provided on the sectionalized flow channel 8 through connection pipes 14-16. Thereby the efficiently of thermal conduction can be improved than that of single flow channel for thermal medium.

5. 发明专利

JPS62284979A MONITOR FOR RECIPROCATION PUMP 失效
公开(公告)号：JPS62284979A
公开(公告)日：1987-12-10
申请号：JP12768786
申请日：1986-06-02
申请人： OSAKA GAS CO LTD , NIIGATA UOSHINTON KK
发明人： MIZOGUCHI YUKIO , YAMAMOTO HARUO , NAKAMURA HARUO
IPC分类号： F04B49/10
摘要： PURPOSE:To enable to measure and monitor the flow and/or abnormality of a pump accurately by operating the detected result of each pressure on the suction side and the delivery side and in the plunger chamber of a reciprocation pump and the detected result of the displacement of the plunger. CONSTITUTION:When a plunger 5 is reciprocated in the vertical direction by a crank mechanism, etc., fluid such as slurry, etc., sucked from an inlet passage 9 into inside of a plunger chamber 2 through a suction check valve 3 is next discharged from an outlet passage 19 through a discharge check valve 4. In this type of reciprocation pump, detectors 6-8 for 1st to 3rd pressures are provided for detecting each pressure at the plunger chamber 2, the inlet of the suction check valve 3 and the outlet of the discharge check valve 4. Further a displacement detector 20 for detecting the displacement of the plunger 5 is provided. And the constitution is so arranged that the discharge flow of a pump and/or the abnormal condition of the pump may be monitored by processing the outputs of these detectors 6-8, 20 by means of a microcomputer and others.

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