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91. 发明专利

JPH07332819A ABSORPTION REFRIGERATOR 失效
公开(公告)号：JPH07332819A
公开(公告)日：1995-12-22
申请号：JP12336794
申请日：1994-06-06
申请人： DAIKIN IND LTD
发明人： KAWAI MITSUSHI , TANAKA MASAAKI
IPC分类号： F25B43/04 , F25B15/06 , F25B49/04
摘要： PURPOSE:To provide an absorption refrigerator which is simple in structure and detects the generation of hydrogen gas in the refrigerator while maintaining its interior at a satisfactorily sealed condition. CONSTITUTION:The hydrogen gas generated in an absorption refrigerator is discharged through a palladium cell 101 into outside air. This hydrogen gas is detected by a hydrogen gas concentration detector 8 provided at the outlet side of the palladium cell 101. Unlike the conventional arrangement such as locating a hydrogen gas detector in the refrigerator, there is no part passing therethrough and, therefore, its interior can be maintained at a satisfactorily sealed condition.

92. 发明专利

JPH07158993A ABSORPTION TYPE REFRIGERATOR 失效
公开(公告)号：JPH07158993A
公开(公告)日：1995-06-20
申请号：JP30147593
申请日：1993-12-01
申请人： DAIKIN IND LTD
发明人： AMANO HIROYUKI , KAWAI MITSUSHI
IPC分类号： F25B15/00
摘要： PURPOSE:To determine the amount of circulation of solution in conformity with not only changes in cooling load but also various pressure fluctuation factors. CONSTITUTION:During change in cooling load, the rotational speed of a solution pump 6 is changed by using a rotational speed changing means 9 to conform with the amount of cooling load to be detected by a load detection means 7 at first, then the rotational speed is corrected in conformity with pressure change which is produced in time lag, thereby correcting the rotational speed after it is changed with rotational speed correction means 10 in conformity with a differential pressure between a high temperature generator 3 and a low temperature generator 4 or a condenser 5. When there is no change in the cooling load, the rotational speed of the solution pump 10 is directly corrected by the rotational speed correction means 10 in conformity with the differential pressure between the high temperature generator 3 and the low temperature generator 4. The supply of liquid of the high temperature generator 3 and the discharge of liquid are balanced, thereby determining an appropreate value for the amount of circulation of solution.

93. 发明专利

JPH03271104A OZONIZER 失效
公开(公告)号：JPH03271104A
公开(公告)日：1991-12-03
申请号：JP7061890
申请日：1990-03-19
申请人： DAIKIN IND LTD
发明人： KATO TOSHIYUKI , KAWAI MITSUSHI , ITO YOSHIHIDE
IPC分类号： C01B13/11 , H01T23/00
摘要： PURPOSE:To provide an silent discharge-type ozonizer intended to prevent offensive sound generation and reduce the generation ratio of nitrogen oxides to ozone, so designed that the discharge space between a discharge electrode and dielectric one and the frequency of alternating voltage to be applied are specified respectively. CONSTITUTION:A discharge electrode 2 and a dielectric electrode 3 are set up with a dielectric layer 1 in between and the discharge space t between the two electrodes 2 and 3 are set so as to be >=0.5mm. An alternating voltage with its frequency set in a range higher than the audio range is applied, from an electric source 4, between the two electrodes 2 and 3 to perform a creeping discharge, thus generating ozone. Thereby, because the frequency of the alternating voltage has set in such a higher range, offensive sound will not be generated. Furthermore, since the discharge space t between the two electrodes 2 and 3 has been set at >=0.5mm, generation of nitrogen oxides toxic to human health can be reduced.

94. 发明专利

JPH0368416A DEODORIZER 失效
公开(公告)号：JPH0368416A
公开(公告)日：1991-03-25
申请号：JP20424689
申请日：1989-08-07
申请人： DAIKIN IND LTD
发明人： HAMADA TOSHIHISA , KAWAI MITSUSHI
IPC分类号： B01D53/38 , A61L9/015 , B01D53/34 , B01D53/74
摘要： PURPOSE:To enhance safety while deodorization effect is improved by equipping an ozone detector, an arithmetic means of the concn. of ozone and an ozonizer controlling means in an air passage. CONSTITUTION:The detection part of an ozone detector 7 is arranged to an air passage in a casing 1 between a filter 4 and a blowout port 6. The concn. of ozone in the air passing therethrough can be detected as change in electric resistance by the ozone detector 7. The output signal of the ozone detector 7, a voltage signal generated in the power source 15 of an ozonizer 2 and the signal of r.p.m of a fan 3 are received as a signal element. Furthermore automatic control of the amount of generated ozone is performed by giving the respective controlling outputs to the power source 15 and a motor 16. The limited concn. of ozone and the limited valve of ozone decomposing efficiency in the filter 4 are stored in a memory 19 and calculated by the measured value of the concn. of ozone and ozone decomposing efficiency is calculated. Thereby amount of ozone is accurately detected.

95. 发明专利

JPH01264905A OXYGEN ENRICHING DEVICE 失效
公开(公告)号：JPH01264905A
公开(公告)日：1989-10-23
申请号：JP9398988
申请日：1988-04-15
申请人： DAIKIN IND LTD
发明人： KAWAI MITSUSHI , OKUNO HIRONOBU
IPC分类号： B01D53/22 , C01B13/02
摘要： PURPOSE:To effect the cooling by a vacuum pump and to maximize the yield with respect to the pump capacity by connecting an oxygen-permeable membrane module, the vacuum pump, and an aftercooler in series, and providing a bypass furnished with a flow control valve. CONSTITUTION:The oxygen-permeable membrane module 1, e.g., a filter with the gas separation membrane consisting of a cross-linked fluorine-contg. acrylic acid derivative polymer as the element, the vacuum pump 2 consisting of an oil-free Roots blower, etc., for adiabatically compressing sucked air and discharging compressed air, and the aftercooler 3 for cooling the compressed air, are connected in series, and the bypass 4 provided with the flow control valve 5 is connected in parallel between the aftercooler outlet and the vacuum pump inlet. The opening degree of the valve 5 is controlled so that the ratio of the amt. of oxygen-enriched air from the module 1 to the bypass flow rate of the bypass 4 is specified.

96. 发明专利

JPS63215501A OXYGEN ENRICHING APPARATUS 失效
公开(公告)号：JPS63215501A
公开(公告)日：1988-09-08
申请号：JP4936087
申请日：1987-03-04
申请人： DAIKIN IND LTD
发明人： KAWAI MITSUSHI
IPC分类号： B01D53/22 , C01B13/02
摘要： PURPOSE:To obtain oxygen-enriched air at a low cost, using a compression-type oxygen enriching apparatus and effectively utilizing waste energy, by passing air compressed with a 1st compression means through a membrane module to get oxygen-enriched air and, at the same time, compressing and supplying air with a turbine driven by compressed oxygen-lean air. CONSTITUTION:Normal air is sucked and compressed by driving a 1st compression means comprising a compressor 7 and passed through a selective oxygen- permeation membrane 2 via a moisture-separator 6 and a supplied air inlet 3 of a membrane module 1. The obtained oxygen-enriched air is supplied to a fermentation tank 8, etc., via an oxygen-enriched air supplying part 4. Compressed oxygen-lean air left after the permeation treatment with the membrane 2 is supplied to a 2nd compression means comprising a turbine 9 via an oxygen- lean air exhaust part 5 to rotate an impeller 10. The rotational force of the impeller 5 is transmitted via a transmission shaft 12 to an output impeller 11 to rotate the impeller. Normal air is sucked and compressed with the output impeller 11 and supplied to a moisture separator 6 together with compressed air supplied from the above compressor 7. The oxygen-enriching operation is continued by this process.

97. 发明专利

JPS63156514A OXYGEN ENRICHING DEVICE FOR FERMENTATION TANK 失效
公开(公告)号：JPS63156514A
公开(公告)日：1988-06-29
申请号：JP30221986
申请日：1986-12-18
申请人： DAIKIN IND LTD
发明人： IZUMITANI NAOAKI , KAWAI MITSUSHI , UEDA YASUSHI
IPC分类号： B01D53/22 , C01B13/02 , C02F3/26
摘要： PURPOSE:To improve the separation efficiency of oxygen, by forming nonporous membrane made of fluorine-contg. acrylate on the surface of porous hollowed yarns and interpolating an oxygen enriching element bundling the porous hollowed yarns between an air inlet and an air outlet openings of a casing. CONSTITUTION:The nonporous membrane made of fluorine-contg. acrylate, such as CH2=CFCOOCH2CF(CF3)OC3F7, is formed on the outer surface of the porous hollowed yarns 16. Air is introduced from an air introducing port 12 into casing 11, and a large amount of oxygen in the air is permeated through the nonporous membrane on the porous hollowed yarns 16 of the oxygen enriching device 15, and the oxygen enriched air is taken out from a take-out port 13 through an effluent chamber 11c, and supplied to a fermentation tank. On the other hand, the nitrogen enriched air is discharged from a discharge port 14. Thus, the separation efficiency of oxygen from nitrogen is improved, and the fermentation time is reduced.

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