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1. 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.

2. 发明专利

JPH0413096A CLEANING BODY COLLECTING DEVICE FOR TUBULAR HEAT EXCHANGER 失效
公开(公告)号：JPH0413096A
公开(公告)日：1992-01-17
申请号：JP11319090
申请日：1990-04-27
申请人： SHOWA RUBBER , HITACHI MACH & ENG LTD
发明人： KATOU YOSHIHARU , AMINO KOZO , OSAWA TADAYOSHI , NAKAJIMA TERUO , SASAKI TAKUYA , YANAGIHARA MAKOTO
IPC分类号： F28G1/12
摘要： PURPOSE:To obtain a collecting device, miniaturized and capable of being formed easily, by a method wherein the main body of a vessel is divided into a first body and a second body, which are structured so as to be connected, while a lattice board is provided so as to be inclinable by a shaft arranged near a connecting flange between the first body and the second body. CONSTITUTION:A collector 10 is constituted of a cylindrical vessel main body 101 divided into an upper first body 102 and a lower second body 103 while the first body 102 is integrated with the second body 103 by tightening flanges 102a, 103a, formed on the first body 102 and the second body 103 respectively, through bolts. A lattice board 105 is provided in the second body 103 so as to be inclinable by a shaft 104. Upon normal cooling, the posture of the lattice board 105 is set in parallel to the flow of cooling water to facilitate the flow- down of water and scale or the like included in the water. Upon cleaning, the posture of the lattice board 105 is inclined so as to regulate the outflow of the sponge balls toward a cooling water outlet pipe 3 in order to collect them and return them to a cleaning device.

3. 发明专利

JPH0413097A CLEANING BODY RECOVERING DEVICE FOR TUBULAR HEAT EXCHANGER 失效
公开(公告)号：JPH0413097A
公开(公告)日：1992-01-17
申请号：JP11319190
申请日：1990-04-27
申请人： SHOWA RUBBER , HITACHI MACH & ENG LTD
发明人： KATOU YOSHIHARU , AMINO KOZO , OSAWA TADAYOSHI , HAYASHI KOICHIRO , SASAKI TAKUYA , YANAGIHARA MAKOTO
IPC分类号： F28G1/12
摘要： PURPOSE:To improve cleaning efficiency and facilitate maintenance as well as inspection by a method wherein the title device is provided with a wire cage, equipped in the space of the main body of a vessel so as to be capable of being taken out, and a turbulent flow forming means, generating turbulence in the flow of water carrying washing bodies so as to be transferred into the wire cage. CONSTITUTION:Upon cleaning, water, carrying sponge balls, flows from a conduit 19 to another conduit 33, a three-way valve 16 and the other conduit 32 through a recovering device 15. In this case, turbulent flow is generated in the flow of water so that the sponge balls will never remain in a wire cage 154 and, therefore, the sponge balls are circulated continuously between a cleaning device and a heat exchanger without sinking or stagnating in the recovering device 15. On the other hand, upon recovering cleaning bodies or the sponge balls, the water flows through a bypass pipeline 22 and, therefore, the sponge balls, carried by the flow of water, are reserved in the wire cage 154 sequentially. When a predetermined period of time has elapsed after switching the flow of water, all of the sponge balls are received into the wire cage and, therefore, the wire cage can be taken out and the sponge balls can be taken out easily by stopping the driving of the pump, intercepting both of a ball forcing valve 31 and the outlet valve 11 of a ball collector and removing the lid 156 of the recovering device 15.

4. 发明专利

JPH0413095A CLEANING DEVICE FOR TUBULAR HEAT EXCHANGER 失效
公开(公告)号：JPH0413095A
公开(公告)日：1992-01-17
申请号：JP11318990
申请日：1990-04-27
申请人： SHOWA RUBBER , HITACHI MACH & ENG LTD
发明人： KATOU YOSHIHARU , AMINO KOZO , OSAWA TADAYOSHI , SASAKI TAKUYA , YANAGIHARA MAKOTO
IPC分类号： F28G1/12
摘要： PURPOSE:To permit the cleaning of a heat exchanger with the continuous flow of cleaning body by a method wherein the basic structure of the title device is constituted of a pipeline structure, combining one set of circulating pipeline with a bypass pipeline connected so as to bypass to circulating pipeline, while the flow of water, conducted through these pipelines, is switched. CONSTITUTION:The flow of sponge balls, passing through a heat exchanger 1, is regulated at the lattice board 10a of a collector 10 from flowing toward a cooling water outlet pipe 3 and arrives at a pump 13 through the outlet valve 11 of the collector, then, is circulated through a conduit 19. Accordingly, sponge balls flow continuously between a cleaning device and the heat exchanger together with carrying water flow under this condition whereby quick and efficient cleaning can be realized. After finishing the cleaning, a three-way valve 16 is switched to a position connected to the bypass side to conduct the carrying water flow through conduit 19 - recovery device 15 bypass pipeline 22 - three-way valve 16 whereby the sponge balls are reserved in the wire cage of the recovery device while the water flows through the heat exchanger through above-described route.

5. 发明专利

JPS5852999A WASHING MATERIAL COLLECTING DEVICE FOR HEAT TRANSFER PIPE 失效
公开(公告)号：JPS5852999A
公开(公告)日：1983-03-29
申请号：JP15057281
申请日：1981-09-25
申请人： HITACHI LTD , HITACHI KIKAI ENG
发明人： TOMARU HITOSHI , KANEKO TOSHIHIKO , YANAGIHARA MAKOTO
IPC分类号： F28G1/12
摘要： PURPOSE:To make it possible to collect and taken out smoothly the heat transfer pipe washing material which flows into an exhaust pipe line together with exhaust cooling water by a method wherein a guide plate for guiding the washing material is provided at the connecting section of a V-shaped main grid and a reverse V-shaped auxiliary grid of a washing material collecting grid. CONSTITUTION:The washing material guide plate 7 which is in the form of a band and which has a flat and smooth surface is provided at the connecting section of the convex V-shaped main grid 1 and the concave reverse V-shaped auxiliary grid intersecting the former at right angles, so as to cover the connecting section whereby the ball-like washing material 6 entering the exhaust pipe line is transferred into a washing material extracting pipe 4 without standing and is taken out from the pipe 4. Further, the guide plate 7 is provided with a nunber of water injecting ports 7 adopted to inject water from the surface of the plate 7 in the direction reverse to the flow direction of the exhaust cooling water so as to remove foreign substances adhered thereto. By the way, the reverse washing of the washing material collecting grid 3 is performed by changing the direction of the grid members of the grid 3 by a rotary mechanism 8.

6. 发明专利

JPS5568599A APPARATUS FOR CONTINUOUS BALL HYDRATION 失效
公开(公告)号：JPS5568599A
公开(公告)日：1980-05-23
申请号：JP13991378
申请日：1978-11-15
申请人： HITACHI LTD , HITACHI TAURA KOGYO
发明人： KOMATSU MASATSUGU , YANAGIHARA MAKOTO
IPC分类号： F28G1/12
摘要： PURPOSE:To achieve effectively hydration of sponge ball for washing inside of heat pipe, by deaeration of ball by compressing and supplying the compressed ball by the compressing action of an eccentric rotor. CONSTITUTION:Sponge balls 6 in a ball ordering device 1 are introduced to upper side of rotor 3 and are pressed in between the rotor 3 and the inside wall of body 2 by friction of ball and rotation of the rotor 3 being eccentric to the center of body. Air in the ball 6 is released by compression with decreasing gap between the body and the rotor, and then sent into liquid 7. With increasing the gap, the ball 6 absorps the liquid by expansion and put out from a ball exist 8. After that, the balls 6 are sent into a cleaning machine and spread out uniformly in the liquid 7, and then they are sent into the many tubes of heat exchanger to wash the inside of tubes.

7. 发明专利

JPS61165596A THERMAL CONDUCTION PIPE CLEANING BODY COLLECTING DEVICE 失效
公开(公告)号：JPS61165596A
公开(公告)日：1986-07-26
申请号：JP575485
申请日：1985-01-18
申请人： HITACHI LTD , HITACHI KIKAI ENG
发明人： KANEKO TOSHIHIKO , ARAI HIROSHI , YANAGIHARA MAKOTO
IPC分类号： F28G1/12
摘要： PURPOSE:To prevent adhering of foreign material to a grid connection part and provide a superior cleaning body recovery rate even in case that a large amount of foreign materials flows into the device by a method wherein a flat plate for use in generating eddy flow is arranged at the upper part of the connec tion between the main grid and the sub-grid. CONSTITUTION:An eddy flow generating flat plate 7 is arranged at the upper part of the connection part between the main grid 1 and the sub-grid 2 and an eddy flow geneating flat plate 9 is arranged at the upper part of the cleaning liquid taking-out pipe 4. That is, the belt-like eddy flow grid is arranged in such a way as it may cover the irregular portions at the bottom part where the main grid 1 and the sub-grid 2 are connected, thereby the water flow at the lower part of the flat plate is disturbed by the eddy flow so as to prevent the staying of the foreign materials flowed together with the coolin gdischarged water in the outlet pipe 5. So it is possible to make a smooth taking of the cleaning unit 6 without staying it and then to take out it.

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