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1. 发明专利

DE2706400A1 未知
公开(公告)号：DE2706400A1
公开(公告)日：1977-08-25
申请号：DE2706400
申请日：1977-02-15
申请人： HITACHI LTD
发明人： KAMOHARA HIDEAKI , NAKATSUI TOJI , YOSHITOMI YUJI , SASAKI IWAO , SHIMADA KENJI
IPC分类号： B21D39/06 , B21D39/20
摘要： Disclosed is a tube expander adapted for use in fixing tubes to a tube plate of a boiler or a multitubular heat exchanger. The expander incorporates an elastic expanding medium adapted to be inserted into a tube to be expanded radially against a wall of a tube-receiving bore of the tube plate. The expander further includes a pressurizing rod passing through the expanding medium, a pressurizing rod head provided at one end of the pressurizing rod, a back-up ring adapted to be supported straddling said tube receiving bore and slidably passed by the pressurizing rod, and seal rings disposed at both sides of the pressurizing rod. The seal rings are made of a hard elastic material of a hardness greater than that of the expanding medium, and each of them is provided with at its portion confronting the end of the expanding medium with a conical recess.

2. 发明专利

JPS5298672A APPARATUS FOR UNIFORMLY EXPANDING PIPE 失效
公开(公告)号：JPS5298672A
公开(公告)日：1977-08-18
申请号：JP1491976
申请日：1976-02-16
申请人： HITACHI LTD
发明人： KANBARA HIDEAKI , NAKATAI TOUJI , YOSHITOMI YUUJI , SASAKI IWAO , SHIMADA KENJI
IPC分类号： B21D39/20 , B21D39/08

3. 发明专利

JPS6154203A Distilling method of multicomponent mixture 失效
标题翻译：多组分混合物的分选方法
公开(公告)号：JPS6154203A
公开(公告)日：1986-03-18
申请号：JP17639284
申请日：1984-08-24
申请人： Hitachi Ltd , Nippon Steel Chem Co Ltd
发明人： HORIGOME TSUKUMO , HAKUTOU NORIMASA , WATANABE CHIAKI , SHIMADA KENJI
IPC分类号： B01D3/42 , C07C1/00 , C07C7/04 , C07C15/46 , C07C67/00
摘要： PURPOSE: To produce automatically the optimum operating conditions of a distillation tower by analyzing continuously the composition of a multicomponent mixture, and regulating automatically the set pressure in a gas and liquid separation tank for a boiler heating medium on the basis of said analytical results and the temp. in the distillation tower.
CONSTITUTION: The composition of a multicomponent mixture such as raw styrene, which is introduced into a distillation tower 2 through a feed line 1, is analyzed continuously with a gas chromatograph 23. A thermometer 24 is also provided at the middle position of the distillation tower 2 to detect the temp. in the distillation tower 2. The detected temp., the discharge of a low b.p. fraction by a flowmeter 25, and the vapor pressure of the low b.p. fraction in a gas and liquid separation tank 16 from a pressure gauge 27 are respectively controlled in cascade. Besides, the analytical result of the gas chromatograph 23 and the detected temp. in the distillation tower 2 are controlled and calculated for feedforward, and the set pressure of the low b.p. fraction vapor in the gas and liquid separation tank 16 is controlled. Consequently, the operation of the distillation system is stabilized.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过连续分析多组分混合物的组成，自动生成蒸馏塔的最佳操作条件，并根据所述分析结果自动调节锅炉加热介质的气液分离罐中的设定压力，温度在蒸馏塔。构成：通过气相色谱仪23连续分析通过进料管线1引入蒸馏塔2中的原料苯乙烯等多组分混合物的组成。在蒸馏塔的中间位置还设置有温度计24 2检测温度在蒸馏塔中2.检测到的温度，排出的低沸点流量计25的蒸馏压，低沸点蒸气压。来自压力计27的气体和液体分离罐16中的分数分别被级联地控制。此外，气相色谱仪23的分析结果和检测到的温度。在蒸馏塔2中进行前馈控制和计算，低bp的设定压力。控制气液分离槽16内的馏分蒸气。因此，蒸馏系统的操作稳定。

4. 发明专利

JPS51117957A METHOD OF AND APPARATUS FOR EXPANDING PIPES 失效
公开(公告)号：JPS51117957A
公开(公告)日：1976-10-16
申请号：JP4323375
申请日：1975-04-11
申请人： HITACHI LTD
发明人： KANBARA HIDEAKI , NAKATAI TOUJI , YOSHITOMI YUUJI , KIMURA NOBUO , SASAKI IWAO , SHIMADA KENJI
IPC分类号： B21D39/08 , B21D39/20 , B21D41/02

5. 发明专利

JP2003269309A PELTON WHEEL 审中-公开
公开(公告)号：JP2003269309A
公开(公告)日：2003-09-25
申请号：JP2002075379
申请日：2002-03-19
申请人： HITACHI LTD , HITACHI ENG SERVICE
发明人： HISHIDA YASUO , TABUCHI KIMIHIRO , SHIMADA KENJI , SEKIDO KENJI , YAMAMOTO NOBORU , TAKAHASHI YUICHI , IMAI HIDEAKI
IPC分类号： F03B1/04 , F03B3/18
摘要： PROBLEM TO BE SOLVED: To provide a Pelton wheel having a needle operating device which is installed in a smaller area. SOLUTION: The Pelton wheel is equipped with a power generator rotated by the water force which buckets receive through the wheel shaft, a casing embedded in a ferro-concrete wall and leading the pressure water in a water pressure pipe to a nozzle, a nozzle pipe to take in the pressure water and furnished internally with the nozzle and a needle, a needle operating device to move the nozzle in the axial direction, and a deflector to change the angle at which the spouted water from the nozzle runs against each bucket using a link mechanism, and in this Pelton wheel power generation device, the water force which the bucket receives is controlled by changing the rate of flow and the direction of the pressure water spouted from the nozzle, wherein the needle operating device has a vertically stretching body in which a servo motor and a speed reducing mechanism are coupled together and is installed in such a way as extending in the direction perpendicular to the needle axial direction. COPYRIGHT: (C)2003,JPO

6. 发明专利

JPS6154201A Method for starting distillation utilizing heat pump 失效
标题翻译：用于启动使用热泵的蒸馏的方法
公开(公告)号：JPS6154201A
公开(公告)日：1986-03-18
申请号：JP17470284
申请日：1984-08-22
申请人： Hitachi Ltd , Nippon Steel Chem Co Ltd
发明人： HORIGOME TSUKUMO , HAKUTOU NORIMASA , SHIMADA KENJI , KAWABE NORIYUKI
IPC分类号： B01D3/00
摘要： PURPOSE: To start smoothly a distillation system and to start distillation by heating components to be distilled with the first reboiler, starting distillation under totally refluxing conditions, and using the liquid bottom from a distillation tower as a heat source for a preheater for vaporizing the overhead distillate.
CONSTITUTION: A low b.p. liquid component, obtained when raw styrene, etc. is distilled, is charged into a distillation tower 2, and heated by the first reboiler 3. The distillation tower 2 is operated under totally refluxing conditions. The heated liquid bottom of comparatively low b.p. from the distillation tower 2 is introduced into a preheater 5 through lines 25 and 26 coming from a gas and liquid separation tank 33. The bottoms are introduced from the preheater 5 into the condenser 9 of the distillation tower through a line 27. Consequently, the pipeline, etc. in the lines is warmed, and normal operation is started. By this method, the distillation system is smoothly put into normal operation in distillation wherein heat energy is saved by using a heat pump.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了顺利开始蒸馏系统，并通过加热要与第一再沸器蒸馏的组分开始蒸馏，在完全回流条件下进行蒸馏，并使用来自蒸馏塔的液体底部作为用于蒸发塔顶馏出物的预热器的热源馏出物构成：低b.p. 蒸馏生成苯乙烯等时得到的液体成分装入蒸馏塔2中，并通过第一再沸器3进行加热。蒸馏塔2在完全回流条件下运转。加热液体底部相对较低从蒸馏塔2通过来自气液分离槽33的管线25和26引入预热器5.塔底物通过管线27从预热器5引入蒸馏塔的冷凝器9中。因此，线路中的管线等被加热，正常运行开始。通过这种方法，蒸馏系统在蒸馏中顺利地进入正常操作，其中通过使用热泵节省了热能。

7. 发明专利

JPS54129067A DEVICE FOR EXPANDING PIPE 失效
公开(公告)号：JPS54129067A
公开(公告)日：1979-10-06
申请号：JP3665478
申请日：1978-03-31
申请人： HITACHI LTD
发明人： YOSHITOMI YUUJI , KANBARA HIDEAKI , MURAKAMI YUKIMASA , TAKADA TADASHI , SHIMADA KENJI , KUBOTA TOMIO
IPC分类号： B21D39/20 , B29C45/00 , B29C57/00 , B29C57/04
摘要： PURPOSE:A device for expanding diameter of pipes in which the surface of seal ring that contact with the medium for expanding pipe is tapered to form a depression and a circular groove is provided at a position near the pressing rod on the tapered surface, thus preventing the plastic flow of the medium for expanding pipe on the operation of pipe expansion and permitting the smooth repetition of pipe expansion. CONSTITUTION:On the surface of seal ring 7 that has tapered surface of disc cross section and contact with the medium for expanding pipe is provided a groove 9 with U-shaped cross section of 0.5-1.5 mm width and 0.5-1.5 mm depth at a position near the pressing rod to divide the tapered surface into 7a and 7b by groove 9. Thus, when a compression load is applied to seal ring in the axial direction, the outer periphery 7e of the seal ring deforms outward in the radial direction; however, the inner periphery does not outward.

8. 发明专利

JPS54121274A METHOD AND APPARATUS FOR UNIFORM EXPANSION OF TUBE 失效
公开(公告)号：JPS54121274A
公开(公告)日：1979-09-20
申请号：JP2868478
申请日：1978-03-15
申请人： HITACHI LTD
发明人： TAKADA TADASHI , YOSHITOMI YUUJI , KANBARA HIDEAKI , SHIMADA KENJI , KUBOTA TOMIO
IPC分类号： B21D39/20 , B21D39/08
摘要： PURPOSE:To exactly control the length of expanded tube by the whole length of tube expanding medium which was set up in advance according to the thickness of tube plate by expanding tube by compressing an elastic tube tube expanding medium to one side and then by expanding tube by compressfing the medium to the other side. CONSTITUTION:A pressure is applied from the pressur oil entrance 20 to the inside of a load- generating cylinder 8, a piston rod 17 is pushed out in the direction of a brokenarrow to compress a spring 21, and then a spacer 9 is pushed through a press rod 12 to deform by compression a seal ring 6, the tube expanding medium 4, and the seal ring 5 in the axial direction. The length of expanded tube by the radial expansion of the tube expanding medium 4 and the rings 5 and 6 is set up to the distance from the contact face between the washer 14 and the ring 5 to the contact face between the ring 6 and the spacer 9. Then, after finishing tube expansion over a fixed time by means of rod 12 extrusion, pressure is switched from the inlet 20 of the cylinder 8 to the pressure oil entrance 19, the rod 17 is moved to the direction of full line arrow for withdrawing, and then the ring 5, the medium 4, and the ring 6 are deformed by compression in the axial direction by the washer 14 to expand tube by radial expansion.

9. 发明专利

JPS5445671A UNIFORM PIPE EXPANSION METHOD 失效
公开(公告)号：JPS5445671A
公开(公告)日：1979-04-11
申请号：JP10587478
申请日：1978-08-30
申请人： HITACHI LTD
发明人： KANBARA HIDEAKI , TAMURA ZENSUKE , OOMURA KEIJI , MURAKAMI YUKIMASA , SASAKI IWAO , SHIMADA KENJI
IPC分类号： B21D39/20 , B21D39/00
摘要： PURPOSE:To provide a uniformly expanded pipe excellent in fixability as well as water sealing by a process in which an axial compression load is given to an elastic medium for expanding pipes inserted into an intended pipe to raise the expansion pressure up to a set level and then, reduced after it is maintained under the set pressure for fixed time. CONSTITUTION:A pipe expansion pressure detector having electrodes 15 and 17 with an elastic medium made of rubber or the like grasped at both ends and sensing sections 16 and 18 is inserted into a pipe 1. Then, when an oil pressure is given to a hydraulic cylinder 6, an axial load is applied to a pressure rod 3 so that the medium 4 is compressed to expand the pipe radially. When the pipe expansion pressure reaches a preset level Po for the detector 10, the detector is actuated to provide a detection signl. The signal sctivates a timer 12 set for a given time. At the same time, a solenoid valve closes a hydraulic circuit to maintain the pressure of the medium 4 at the level Po. When the timer 12 reaches a preset time, the valve 13 is opened so that the pressure of the hydraulic cylinder 6 begins to fall.

10. 发明专利

JPS5384865A PIPE EXPANDING DEVICE 失效
公开(公告)号：JPS5384865A
公开(公告)日：1978-07-26
申请号：JP11777
申请日：1977-01-05
申请人： HITACHI LTD
发明人： KANBARA HIDEAKI , OOMURA KEIJI , YOSHITOMI YUUJI , MURAKAMI YUKIMASA , SHIMADA KENJI
IPC分类号： B21C37/16 , B21D39/08

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