专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明专利

JPH04214199A TUBE HEAT EXCHANGER CLEANING BODY COLLECTION DEVICE 失效
公开(公告)号：JPH04214199A
公开(公告)日：1992-08-05
申请号：JP5706791
申请日：1991-03-20
申请人： HITACHI LTD , HITACHI MACH & ENG LTD
发明人： OTAKE KATSUMOTO , SUMIYA YOSHIO , FUJITANI YASUO , ODA SHIGEO , MATSUSHIMA TOKUNORI , KANEKO TOSHIHIKO , SASAKI TAKUYA , YANAGIHARA MAKOTO
IPC分类号： F28G1/12
摘要： PURPOSE:To collect a cleaning body at a high collection rate by installing a flow straightening member which divides a cooling passage between collection gratings to straighten the bias flow from the upper stream, an induction member which inducts a cleaning body into a cleaning body extraction pipe, and a cleaning body extraction pipe whose tip opening section is opened at the downstream side in said induction member. CONSTITUTION:A flow straightening member 5 is positioned at the axial core direction of a shell body 1 in a space clamped by collection gratings 2 in such a manner that a cooling passage may be divided in two sections where both ends are fixed with a vertical flat plate 10 and a cleaning body extraction pipe 4 is fixed in the central part. Vanes 6 extend at a slanting upper stream side at the same angle while they are more widely formed as they go the the tip side. When a cleaning body moves between the vanes 6 along the slanting surface on both sides and reach the lowest downstream side, it is sucked up into the cleaning body extraction pipe 4 by way of an opening section 7 and collected, passing through the cleaning body extraction pipe 4. Since the line of stream is straightened against the biassed flow from the upper stream side, it is not adhered to the collection gratings, thereby providing a high collection performance.

52. 发明专利

JPH04148197A WASHING BODY COLLECTING DEVICE FOR TUBE TYPE HEAT EXCHANGER 失效
公开(公告)号：JPH04148197A
公开(公告)日：1992-05-21
申请号：JP27040990
申请日：1990-10-11
申请人： HITACHI LTD , HITACHI MACH & ENG LTD
发明人： MATSUSHIMA TOKUNORI , NAKAMURA SHOZO , ISHIBASHI KOJI , OTAKE KATSUMOTO , SASAKI TAKUYA
IPC分类号： F28G1/12
摘要： PURPOSE:To improve the recovery rate of washing bodies by providing a flow regulating member formed along a center dividing a cooling water flow passage into two parts substantially. CONSTITUTION:A flow regulating member 5 is formed in a space pinched between collecting lattices 2 along the center of the space, which divides a cooling water flow passage into two parts substantially, and is connected to a washing body extracting tube 4 at the center of a cylinder 1 while the other ends are connected to vertical flat plates 10. Accordingly, the flow regulating member 5 regulates a stream line at the inlet port side of the washing bodies collecting cylinder with respect to biased flow from upstream side whereby vertical component of the stream line of the cooling water against the collecting lattice surfaces 2 becomes small and the adhesion of the washing bodies to the surface of the collecting lattices as well as the stagnation of the washing bodies on the same surface can be prevented. On the other hand, a plurality of vanes 12 of the lattice, which are consisting of flat plates, are provided in the upstream side of the collecting lattices 2 in parallel to the lattices 2 at positions keeping a given gap between the lattices 2. Accordingly, a collecting lattice can be prevented from the diving of the washing bodies or shells into the collecting lattices and the deterioration of the recovery rate of the washing bodies due to a temporary high flow speed.

53. 发明专利

JPS63162089A METHOD FOR PREVENTING STICKING OF MARINE ORGANISM BY USING EXTERNAL ULTRAVIOLET LIGHT SOURCE 失效
公开(公告)号：JPS63162089A
公开(公告)日：1988-07-05
申请号：JP30643786
申请日：1986-12-24
申请人： HITACHI LTD
发明人： KON HIDEKI , SASAKI TAKUYA , IIDA YASUTAKA , NAKAHACHI TAKASHI
IPC分类号： F28F19/00 , C02F1/32 , F28F19/01
摘要： PURPOSE:To assure high safety and excellent maintenance characteristic, by sending the UV rays condensed from an external UV light source into one end of an optical fiber cable, putting the cable into sea water, and projecting the UV rays in the sea water from the other end of the cable. CONSTITUTION:The UV light is projected to the systems of a heat exchanger which uses the sea water as its cooling water or a marine structure or ship which is in constant contact with the sea water in order to prevent the propagation of adhesive contaminating organism. The UV rays condensed from the external UV light source 2 is sent into one end of the optical fiber cable 7 without immersing a UV lamp directly into the sea water. This cable 7 is put into the sea water and the UV rays are projected in the sea water from the other end of the cable. As a result, the safety is enhanced and the maintenance characteristic is improved.

54. 发明专利

JPS62294899A METHOD OF PREVENTING ADHESION OF MARINE ORGANISM TO BALL CIRCULATING SYSTEM FOR BALL WASHING DEVICE 失效
公开(公告)号：JPS62294899A
公开(公告)日：1987-12-22
申请号：JP13598186
申请日：1986-06-13
申请人： HITACHI LTD , HITACHI MACH & ENG LTD
发明人： KON HIDEKI , SASAKI TAKUYA , IIDA YASUTAKA , NAKAHACHI TAKASHI
IPC分类号： F28G1/12 , F28G13/00
摘要： PURPOSE:To prevent adhesion of a marine organism without using chemicals and heavy metals, by a method wherein sea water, in which is irradiated with ultraviolet rays by means of a different system to sterilize adherent plankton in sea water, is caused to flow to a ball circulating system. CONSTITUTION:A system, in which water is fed through amain pipe inlet system 2 by means of a valve 12, is connected through an ultraviolet ray treating device 13 to the portion on the downstream side of a valve 8 on the inlet side of a ball circulating pump 6. Further, the system is connected from the portion on the upper stream side of a valve 9 on the outlet side of the ball circulating ball 6 through a bypass valve 14 to the upper stream side of the valve 8. When a ball is not circulated, the valve 8 is closed, water pumped up with the aid of a pump 6 enters an ultraviolet ray treating device 13 through the valve 12 for sterilizing treatment. After passage of water through the pump 6, the water is branched into a system subsequent to the valve 9 and a system of the valve 14, and outgoes to main pipes 2 and 4. This constitution prevents adhesion of a marine organism to a ball circulating system, and enables prevention of the occurrence of function deterioration of a ball washing device.

55. 发明专利

JPS5939480A Welding method for active metal pipe and active metal pipe plate 失效
标题翻译：活性金属管和活性金属管板的焊接方法
公开(公告)号：JPS5939480A
公开(公告)日：1984-03-03
申请号：JP14928382
申请日：1982-08-30
申请人： Hitachi Ltd , Hitachi Service Eng Co Ltd
发明人： AKUTSU KOUICHI , OBARA TETSUO , SASAKI TAKUYA , TAKASE MASANORI
IPC分类号： B23K9/028 , B23K9/23
CPC分类号： B23K9/23
摘要： PURPOSE:To weld satisfactorily a Ti plate and a Ti pipe plate particularly of active metal, by bringing the pipe and pipe plate of the active metal into tight contact with each other by expanding then cutting the welding surface of the pipe plate including the end of the pipe to be welded or the surface of the pipe plate in the range detrimental to welding down to a prescribed depth then performing welding. CONSTITUTION:A pipe plate 1 consisting particularly of Ti is cutted away of the oxide film on the surface by planing 1a after manufacture, whereafter the plate is punched 3a with a pipe hole and the hole is chamfered 3b on the insertion side of the pipe. The frequency at which 0.1mm. surface shear droop 3c is produced during the punching 3a of the plate 1 is extremely high. A Ti pipe 2 is inserted into the hole 3a of the plate 1 and is subjected to expanding 4 so that the pipe is brought into tight contact with the pipe plate by the expanding 4 from the pipe plate surface allowing the droop 3c to remain. The droop 3c is cutted 10 from the surface of the plate 1 and the surface of the plate 2 is cutted to the depth in a >=0.01mm. range to remove an oxide film 1b, whereafter the contact part between the pipe end and the plate 2 is welded. As a result, the generation of the blow hole and oxidation during welding by the air and oxides in the shear droop part of the punched hole is prevented.
摘要翻译：目的：通过使活性金属的管板和管板彼此紧密接触，通过膨胀然后切割管板的焊接表面，特别是活性金属的Ti板和Ti管板，令人满意地焊接，要焊接的管道或管板的表面在不利于焊接的范围内，直到进行焊接。构成：特别由Ti组成的管板1在制造后通过刨削1a切掉表面上的氧化膜，然后用管孔冲压板3a，在管的插入侧将孔倒角3b。频率在0.1mm。在板1的冲孔3a期间产生表面剪切下垂3c非常高。将Ti管2插入板1的孔3a中并进行膨胀4，使得管通过膨胀部4从管板表面与管板紧密接触，从而允许下垂部3c保持。下垂3c从板1的表面切割10，并且板2的表面被切割成> 0.01mm的深度。范围以去除氧化膜1b，然后焊接管端和板2之间的接触部分。结果，防止了冲孔的产生和焊接过程中的空气和冲孔的剪切下垂部分中的氧化物的氧化。

56. 发明专利

JPS58173382A TRANSPORTATION METHOD OF CONDENSER AND CONSTRUCTION FOR TRANSPORTATION THEREOF 失效
公开(公告)号：JPS58173382A
公开(公告)日：1983-10-12
申请号：JP5370582
申请日：1982-04-02
申请人： HITACHI LTD
发明人： HOSHINO YOSHIYUKI , SASAKI TAKUYA , ISHIDA KEIZOU , SUMIYA YOSHIO , BAN KUNIYOSHI , MIYAI MASAHIKO
IPC分类号： F28B1/00 , B23P15/26
摘要： PURPOSE:To realize the safe transportation and short term of assembling work by a method wherein the condenser is assembled up to the state as near as possible to reach completion at the factory and then divided into the sizes capable to transport on road especially with the condition to eliminate the requirement to weld cooling tubes at the site of installation of the condenser. CONSTITUTION:The cooling tubes 21, which constitute the cardinal part of the condenser, have been attached in a main shell 11 by welding under the state that no more welding is necessary. Tube supporting plates 17 and reinforcing plates 19 and the like also have been attached similarly in the main shell 11. A condensate reservoir 12, an upper shell 2 and a connecting shell 13 are respectively sent separately from the main shell 11. Partition plates 14 are divided in corresponding to the longitudinal division of the main shell 11 and transported by being fixed to the bottom of the respective main shells 11. Because the partition plate 14 equipped with the function as the roof plate of the condensate reservoir 12 is fixed to the bottom of the main shell 11, the partition plate 14 performs the duty of the transportation bottom plate of the main shell 11, resulting in eliminating the need for adding reinforcing member in extra and enabling to safely transport the main shell 11 as it is. Because no welding work of cooling tubes is contained in the assembling work by welding said divided parts, the assembling work is technically easy and a few amount of welding work and the short term of assembling work are resulted.

57. 发明专利

JPS57153744A REMOVAL OF IRON OXIDE IN WATER OF CONDENSING SYSTEM 失效
公开(公告)号：JPS57153744A
公开(公告)日：1982-09-22
申请号：JP3939381
申请日：1981-03-20
申请人： HITACHI LTD
发明人： SUZUKI KATSUMI , SUZUKI MAMORU , ITOU KAZUTOSHI , MINATO AKIRA , KANBAYASHI TAKESHI , SASAKI TAKUYA
IPC分类号： B03C1/28
摘要： PURPOSE:To remove iron oxide in condensate in good efficiency by removing iron oxide in water within the hot well of a condenser of a power plant by magnetic force to availably utilize an apparatus. CONSTITUTION:In the system of a power plant such as thermoelectric power plant or the like, iron is largely generated or the content thereof is increased in drain water from the exhuast and low pressure water supply heater 8 of a turbine. By this reason, a permanent magnet is arranged on the hot well 3 of a condenser 2 and iron oxide in the condensate is caught and removed by the action of magnetic force. As described above, iron oxide in the plant system is removed in good efficiency.

58. 发明专利

JPS5715880A METHOD OF SELECTING AND COUNTING WASHING BODY IN PIPE 失效
公开(公告)号：JPS5715880A
公开(公告)日：1982-01-27
申请号：JP8970980
申请日：1980-06-30
申请人： HITACHI LTD
发明人： OOKOUCHI ISAO , TAKAHASHI SANKICHI , MUKAI YASUAKI , OOTAKE KATSUMOTO , SASAKI TAKUYA , MIYAI MASAHIKO
IPC分类号： B07C5/08 , B07C5/04 , G06M7/00

59. 发明专利

JPS5714985A COUNTING METHOD OF INTRATUBE CLEANING OBJECT 失效
公开(公告)号：JPS5714985A
公开(公告)日：1982-01-26
申请号：JP8971280
申请日：1980-06-30
申请人： HITACHI LTD
发明人： MUKAI YASUAKI , MIYAI MASAHIKO , SASAKI TAKUYA , OOTAKE KATSUMOTO
IPC分类号： F28G1/12 , G06M1/10 , G06M7/00
摘要： PURPOSE:To realize the labor saving for operation of a cleaning device, by securing an automatic counting of the number of sponge balls with use of plural photoelectric tubes and thus avoiding counting the foreign matters if detected as the number of sponge balls. CONSTITUTION:When a sponge ball passes through a transparent casing 11, a light source 12 has parallel beams by a lens 13 and cuts off the luminous flux that transmits through a mask 18 and the casing 11 to reach a photoelectric tube 15. Thus the current value of the tube 15 is reduced. The number of sponge balls can be counted accurately although a foreign matter 20 different from the sponge ball into a tube. Thus plural tubes, i.e., two tubes 15 are used, and accordingly reduction of current value same as that caused when a sponge ball passes through, if occurred, shows a small value on a display device 19a even in case a substance 20 passes through within the casing 11. Then display devices 19a and 19b are connected with an AND circuit to give distinction between a sponge ball and foreign substance.

60. 发明专利

JPS5714197A WATER CONTAINING SYSTEM FOR CLEANING BALL FOR HEAT EXCHANGER TUBE 失效
公开(公告)号：JPS5714197A
公开(公告)日：1982-01-25
申请号：JP8971580
申请日：1980-06-30
申请人： HITACHI LTD
发明人： BAN KUNIYOSHI , SASAKI TAKUYA
IPC分类号： F28G1/12
摘要： PURPOSE:To automatize water containing process for cleaning balls, by connecting a water containing unit to a selective memory unit, into which combination data of the degree of vacuum condition, the duration to keep vacuum condition, and the number of times of promotive operation to contain water into the cleaning balls are memorized, in order to obtain necessary and enough water contained condition in the cleaning balls. CONSTITUTION:The water containing unit 1 is connected to a selective memory unit 3, into which combination data of each condition that the degrees of vacuum condition in the water container is to be more than 300mm.Hg, the duration to keep vacuum condition is to be longer than two minutes, and the number of times of promotive operation to contain water by a method to return the pressure in the container of water from vacuum condition to the atmospheric pressure is to be more than one time are memorized. A vacuum pump 5 and the air intake valve 4 are controlled by the signals transmitted from the selective memory unit 3. This control makes the confirmation used to be performed by the human eyes during the work to contain water into the cleaning balls unnecessary, so that the work can be carried out automatically.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式