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81. 发明专利

JPS5487960A SHELL TYPE HEAT EXCHANGER 失效
公开(公告)号：JPS5487960A
公开(公告)日：1979-07-12
申请号：JP15558377
申请日：1977-12-26
申请人： HITACHI LTD
发明人： NAKAZATO NORIO , SAHO NORIHIDE , YOSHIMATSU YUKIYOSHI , HIRAKAWA HARUO , SHIYOUGENJI HIROSHI
IPC分类号： F28D9/00
摘要： PURPOSE:To obtain a heat exchanger provided with a superior strength without necessitating metallurgical bonding by laminating interchangeably cylindrical and smooth heat-conducting plates and wave-shaped heat-conducting plates each of which is cylindrical and has a wave- shaped section in concentric circles and constituting fluid passages between heat conducting plates. CONSTITUTION:Fluid A enters in a header 17a in one range from an upper end pipe 21a, and after distributed into a plurality of flow passages 14, the fluid is readily spreaded uniformly in the circumferential direction and flows down, and enters into a header 18a from the flow passage 14 in other ranges and is introduced outside through a pipe 22a. The fluid B in the other part enters into a header 18b in the other range from a pipe 22b, and after distributed into a plurality of flow passages 15, the fluid is readily spreaded in the circumferential direction and rises and enters into a header 17b from the flow passage 15 and is introduced outside from a pipe 21b. During the fluid A flows down in the flow passage 14 and the fluid B rises in the flow passage 15, heat exchange is performed through a smoothheat-conducting plate 12. At this time, the maximum stress generated due to the pressure difference between both fluids acts in the circumferential direction, so the necessity of welding of wave-shaped heat conducting plates 13 is eliminated, and simple contact is sufficient.

82. 发明专利

JPS5479860A HEAT EXCHANGER 失效
公开(公告)号：JPS5479860A
公开(公告)日：1979-06-26
申请号：JP14602377
申请日：1977-12-07
申请人： HITACHI LTD
发明人： SAHO NORIHIDE , NAKAZATO NORIO , YOSHIMATSU YUKIYOSHI , HIRAKAWA HARUO , KUNIMOTO KATSUTOSHI
IPC分类号： F28F13/14 , F28D7/10 , F28F1/00 , F28F3/04 , F28F3/06
摘要： PURPOSE:To obtain a heat medium with various heat-transmitting directons by combining several metals with different thermal conductivities metallurgically in one body for promoting heat-exchanging efficiency. CONSTITUTION:A corrugated face 19 is shaped on the central heat-transmitting part of a heat plate 18, where metallic bodies 20 with high thermal conductivity and the same 21 with low conductivity are alternately combined in the longitudinal order of the heat plate to be in one body metallurgically. Flat faces 22 are formed on both ends of the corrugated face 19 in continued state for giving a header to distribute fluid. Heat plates 18 are piled up, and sealings are given in the upper and the lower part of the piling by side plates 23 made of a metal of low thermal conductivity. Meanwhile, the side faces of the heat plates are sealed by metallic seal plates 26 and 27 with low thermal conductivity except in the parts of a hot part header 24 of high temperature and high pressure fluid and a cold end header 25. This construction serves to promote the heat-exchanging efficiency.

83. 发明专利

JPS5321082A METHOD AND APPARATUS FOR LIQUEFACTION AND SEPARATION OF AIR 失效
公开(公告)号：JPS5321082A
公开(公告)日：1978-02-27
申请号：JP9479576
申请日：1976-08-11
申请人： HITACHI LTD
发明人： NAKASATO NORIO , SAHO NORIHIDE , YOSHIMATSU YUKIYOSHI , OKABE MICHIAKI
IPC分类号： F25J3/04
摘要： PURPOSE:To lower power cost without using an additional refrigerating means by the heat exchange of low pressure liquid air, which is made by the expansion of the liquid air in the bottom of a medium pressure tower, with N2 from the top of the medium tower in the No.1 condenser to condense the N2 and to reflux the N2 to the medium pressure tower, thus making lower pressure air available for the raw material.

84. 发明专利

JP2002181445A AIR SEPARATOR HAVING PACKED TOWER 审中-公开
公开(公告)号：JP2002181445A
公开(公告)日：2002-06-26
申请号：JP2001330120
申请日：2001-10-29
申请人： HITACHI LTD
发明人： HARADA SUSUMU , YOSHIMATSU YUKIYOSHI
IPC分类号： F25J3/04
摘要： PROBLEM TO BE SOLVED: To improve the dispersion property of liquid in a liquid distributor provided in a packed tower and provide the compact liquid distributor and make compact the packed tower performing a gas-liquid contact and an air separator. SOLUTION: A liquid receiving plate 3 for receiving the liquid 1 flowing down from an upper part is provided. The liquid 1 flowing down from the liquid receiving plate 3 is guided to a circular liquid pan 6, and further, other liquid 1' from liquid supply piping 13 is guided to the liquid pan 6. The liquid is guided to a first liquid distributing box 7 through a buffer box 5 provided in the liquid pan 6. A plurality of second liquid distributing boxes 9 having many holes 10 on their bottoms are provided below the first liquid distributing box 7. Thus, the dispersion property of the liquid can be improved and the compact liquid distributor can be provided.

85. 发明专利

JPH07185316A PACKING 失效
公开(公告)号：JPH07185316A
公开(公告)日：1995-07-25
申请号：JP33494993
申请日：1993-12-28
申请人： HITACHI LTD
发明人： YOSHIMATSU YUKIYOSHI , HARADA SUSUMU , OKAMOTO SHIGEYASU
IPC分类号： F25J3/02 , B01D3/16 , B01J19/32
摘要： PURPOSE:To attain the high separation efficiency and the wide range of operation by preventing the channelling of liquid flowing around the packing, particularly preventing liquid from flowing down along the wall of a tower. CONSTITUTION:In the corrugated grooves of a thin layer material constituting of a packing 2, at the tower wall part of the lower part of the corrugated grooves installed inclined to the tower axis of a packed bed 1, that is, at the end part in the diameter direction of the lower part of the corrugated grooves installed inclined to the tower axis, a cutout part 100 is provided on the upper surface of the end part of the corrugated grooves. In this way, the packing itself has a channelling preventive function, and prevents liquid from flowing along the tower wall.

86. 发明专利

JPH07780A PACKING 失效
公开(公告)号：JPH07780A
公开(公告)日：1995-01-06
申请号：JP14729393
申请日：1993-06-18
申请人： HITACHI LTD
发明人： HARADA SUSUMU , YOSHIMATSU YUKIYOSHI , SOMEYA KAZUO , OKAMOTO SHIGEYASU
IPC分类号： B01F3/04 , B01J19/32
摘要： PURPOSE:To enhance the dispersion of a liq. at a low flow rate and to obtain an efficient packing by attaching a reticular auxiliary packing firmly to one or both sides of a thin packing. CONSTITUTION:Many holes 3 are provided in a thin packing 1 of metal, plastic, etc., with an appropritate perforation rate. A chevron passage 4 folded obliquely to the axis of a tower is provided and arranged so that the adjacent passages 4 cross each other, and a wire mesh 2 is furnished as the auxiliary element for the packing on one or both sides of the thin placking 1 at an appropriate distance when the packing is folded. Consequently, the liq. is collided with the many thin wires of the mesh 2 and sufficiently dispersed, the liq. intrudes into the find pore by capillarity, and the liq. is excellently distributed. Accordingly, the liq. is highly dispersed even at a low flow rate, and the mass transfer rate is increased.

87. 发明专利

JPH06312101A FILLER FOR GAS LIQUID CONTACT AND PACKED TOWER 失效
公开(公告)号：JPH06312101A
公开(公告)日：1994-11-08
申请号：JP10270093
申请日：1993-04-28
申请人： HITACHI LTD
发明人： YOSHIMATSU YUKIYOSHI , HARADA SUSUMU , SOMEYA KAZUO , YAMAZAKI MASAHIRO
IPC分类号： B01D3/16 , B01D3/26 , B01D53/18 , B01J10/00 , B01J19/32 , F25J3/02 , F28F25/08
摘要： PURPOSE:To reduce a pressure loss and widen an operating control range by allowing a liquid to flow down smoothly from a corrugated groove in a thin layer material which constitutes a filler of a regular form, if the quantity of liquid increases. CONSTITUTION:A packed tower 1 is constituted by installing liquid flow acceleration devices 101 to 103 between the blocks 2 to 5 of filler. The liquid flow acceleration device has a larger size member in cross section area than a corrugated groove of each element 20 to 50 which forms the filler 2 to 5 to form a large space. Alternatively the lower part of the filler is constituted in an uneven form for each adjacent thin layer material to form a space as a flow acceleration device. Consequently, the liquid flows down smoothly from the lower part of the filler, so that a pressure loss is prevented from increasing.

88. 发明专利

JPH06238101A GAS-LIQUID CONTACTING DEVICE 失效
公开(公告)号：JPH06238101A
公开(公告)日：1994-08-30
申请号：JP3009293
申请日：1993-02-19
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： OMURA KEIJI , OKUNO SUMIO , YOSHIMATSU YUKIYOSHI , SOMEYA KAZUO , TOYONAGA NOBUYOSHI , TSUSHIMA HIROSHI
IPC分类号： F25J3/02 , B01D3/22
摘要： PURPOSE:To lower the manufacturing cost of trays by arranging the 1st frame where the height of a liquid receiver is the same as that of a perforated plate on the underside of the perforated plate, joining the perforated plate and the 1st frame and further installing the 2nd frame below crossing the 1st frame. CONSTITUTION:Pans, such as a perforated plate 2, an overflow pipe 5, a liquid receiver 6, the 1st and 2nd frames 7, 8 and a support ring 9 constituting a tray 10 are manufactured separately. At this time, the 1st frame 7 is jointed to the perforated plate 2 so that the height h1 of it including the perforated plate 2 may be the same as that h3 of the liquid receiver 6. And after the perforated plate 2 and the 1st frame 7 are jointed by spot welding, the overflow pipe 5, the liquid receiver 6 and the support ring 9 are arranged in prescribed places and all the parts, such as the perforated plate 2 are assembled and jointed with the 2nd frame 8 being abutted on undersides 6a, 7a of the liquid receiver 6 and the 1st frame 7 respectively. The 2nd frame 8 is jointed to the side 9a of the support ring 9 at its end 8a.

89. 发明专利

JPH05237303A 失效
公开(公告)号：JPH05237303A
公开(公告)日：1993-09-17
申请号：JP4276392
申请日：1992-02-28
申请人： HITACHI LTD
发明人： YOSHIMATSU YUKIYOSHI , UEDA HIRONOBU , OMURA KEIJI , YAMAMOTO AKIO , KITA OSAMU
IPC分类号： B01D3/22 , F25J3/02
摘要： PURPOSE:To provide a gas-liquid contacting device where vapor-liquid contact is properly maintained and pressure drop is small and it is hard for weeping to happen and which has a wide operating range by providing a structure where small holes are opened along the flow direction of liquid of a perforated plate and the small holes having a slant hole to the plate thickness direction is provided. CONSTITUTION:Since the small holes 6 are opened along the flow direction of liquid 3 on a perforated plate 2, the flow of an ascending gas 4 from below the perforated plate 2 turns in the direction along the flow direction of the liquid 3 on the way of pass through the perforated plate 2 and comes into contact with the liquid 3 and ascends. At this time, by small holes 6 in the shape of a slant hole, kinematic energy of the gas effectively acts force for the liquid 3 on the perforated plate to smoothly flow to prevent more residence of the liquid 3 than required, causing the thickness of liquid seal on the perforated plate 3 to be decreased. Therefore pressure drop is reduced, good gas-liquid contact is performed, weeping become unlikely to happen and a operating range is widened.

90. 发明专利

JPH03293012A LOW-PURITY OXYGEN FEEDER 失效
公开(公告)号：JPH03293012A
公开(公告)日：1991-12-24
申请号：JP9402790
申请日：1990-04-11
申请人： HITACHI LTD
发明人： YAMAMOTO AKIO , ISHIZU HISAZUMI , YOSHIMATSU YUKIYOSHI
IPC分类号： B01D53/22
摘要： PURPOSE:To inhale low-purity oxygen and to cool the human head and below by incorporating a cooler, a blower and a hood into a low-purity oxygen generator and placing the members in a sofa. CONSTITUTION:An oxygen separator consisting of a gas separation membrane unit 3 or an adsorption tower unit, a filter 2 and a compressor or a vacuum pump 8 or an oxygen cylinder and a gas cooler 11 are placed in a chair or a sofa 14. A hood 15 or capsule for covering the human head is fixed to the upper part of the chair or sofa 14, and an oxygen-enriched air supply blower 13 is provided therein. Consequently, low-purity oxygen is inhaled, and the head and below are cooled.

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