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1. 发明专利

JPH03217596A PIPE DRIVING EXCAVATOR 失效
公开(公告)号：JPH03217596A
公开(公告)日：1991-09-25
申请号：JP950890
申请日：1990-01-20
申请人： NIPPON KOKAN KK , JAPAN STEEL & TUBE CONSTR
发明人： OKADA AKIRA , ARAI MASATOSHI , KIMURA TAKAHIRO
IPC分类号： E21B7/06 , E21D9/06 , F16L1/024
摘要： PURPOSE:To facilitate movement and placement of an excavator by constituting a pipe driving excavator of a pipe transporting truck on which a buried pipe and internal pipe are mounted and the excavator to drive the buried pipe while excavating and moving forward with a drill provided to the end of the internal pipe inserted into the buried pipe. CONSTITUTION:A buried pipe 29 mounted on a pipe transporting truck 3 is lifted by a hoist 39 to move it to a carrier roller 40, and it is transported to a carrier roller 41 of a excavator 2. After that, the rear end of the buried pipe 29 is held by a headchuck 32, and after an internal pipe 30 mounted on the pipe transporting truck 3 is transported to hold by an internal pipe holding head 32 of a pipe holding device 9, the pipe holding device 9 is lifted by a hoist 7 to load the end of the buried pipe 29 to pipe driving device 6. The buried pipe 29 and internal pipe 30 provided with a drill on the end thereof are driven into the ground by a driving cylinder 24 while holding the buried pipe 29 alternately with up and down chucks 25 and 23. According to the constitution, work efficiency can be promoted.

2. 发明专利

JPH01315583A INTRA-PIPE HIGH-CONCENTRATION LIQUID DISCHARGING DEVICE 失效
公开(公告)号：JPH01315583A
公开(公告)日：1989-12-20
申请号：JP14698088
申请日：1988-06-16
申请人： NIPPON KOKAN KK , JAPAN STEEL & TUBE CONSTR
发明人： ARAI MASATOSHI , KIMURA TAKAHIRO , NAKAJIMA TAKASHI , OKADA AKIRA , URAMOTO TOSHIAKI
IPC分类号： E21B21/00
摘要： PURPOSE:To efficiently discharge a high-concentration liquid in a closed-tip type pipe by using a pig having injection ports of a fluid and a liquid intake port on the front face and a seal body closely stuck to the inner wall of the pipe on the outer periphery. CONSTITUTION:A pig 1 having fluid injection ports 4 and a liquid intake port on the front face and a circular seal body 8 closely stuck to the inner wall of a pipe on the outer periphery and connected with a feed hose 2 and a drain hose 3 via pipe bodies 6 and 7 is inserted into a closed-tip type buried bent pipe P, the bent pipe P is closed. Water is fed to the pig 1 from the feed hose 2 while the pig 1 is fed by pressure toward the tip of the bent pipe P by the air or water fed from a feed device, water is sprayed to the front through the fluid injection ports 4 to stir and dilute a high-concentration liquid A. This liquid is fed into the liquid intake port 5 and discharged to the outside of the pipe through the drain hose 3.

3. 发明专利

JPH01315582A HOSE INSERTION INTO UNDERGROUND-INSTALLED BENT PIPE 失效
公开(公告)号：JPH01315582A
公开(公告)日：1989-12-20
申请号：JP14698288
申请日：1988-06-16
申请人： NIPPON KOKAN KK , JAPAN STEEL & TUBE CONSTR
发明人： ARAI MASATOSHI , KIMURA TAKAHIRO , NAKAJIMA TAKASHI , OKADA AKIRA , URAMOTO TOSHIAKI
IPC分类号： E21B7/08
摘要： PURPOSE:To smoothly insert a flexible hose into a bent pipe with good workability and efficiently perform the mud water discharging work by fitting running bodies with running rollers at an interval, connecting adjacent running bodies with a connecting body, and inserting them. CONSTITUTION:A running body 3 is constituted of a cylinder body 5, running rollers 7 fitted to the cylinder body 5 via leg sections 6 and put in contact with the inner wall of a bent pipe 1, and a connection section 10 for fitting a connecting body 4 made of a bar body. Running bodies 3 are fitted in sequence to a flexible hose 2 by a pushing device at the preset interval, the preceding running body 3 and the succeeding running body 3 are connected via the connecting body 4, the running bodies 3 are pushed into the bent pipe 1. The running bodies 3 and the flexible hose 2 integrated by the connecting body 4 are held and moved in the lengthy direction, thus the flexible hose 2 can be easily inserted.

4. 发明专利

JPH01315578A BENT PIPE GUIDING DEVICE FOR CIRCULAR ARC PROPULSION CONSTRUCTION 失效
公开(公告)号：JPH01315578A
公开(公告)日：1989-12-20
申请号：JP14697788
申请日：1988-06-16
申请人： NIPPON KOKAN KK , JAPAN STEEL & TUBE CONSTR
发明人： ARAI MASATOSHI , KIMURA TAKAHIRO , NAKAJIMA TAKASHI , OKADA AKIRA , URAMOTO TOSHIAKI
IPC分类号： E21B7/08 , E21D9/06 , E21D9/093
摘要： PURPOSE:To surely prevent the swing or the like of the rear end of a bent pipe and stably propel the pipe by moving a bent pipe holding head holding the bent pipe along a guide rail with the preset curvature. CONSTITUTION:A guiding device (a) is constituted of a pair of guide rails 2 arranged above a propelling device 1 and a bent pipe holding head 3 removably connected to the rear end of a bent pipe unit Po. The bent pipe unit Po to be connected is stably held on the guide rails 2 via the bent pipe holding head 3. In propelling, the bent pipe holding head 3 is moved along the guide rails 2 with the curvature corresponding to the bent pipe axis while holding the bent pipe P.

5. 发明专利

JPH0235189A PIPE PROPULSION MACHINERY IN UNDERGROUND PUSH-LAYING METHOD FOR BEND 失效
公开(公告)号：JPH0235189A
公开(公告)日：1990-02-05
申请号：JP18148288
申请日：1988-07-22
申请人： NIPPON KOKAN KK , JAPAN STEEL & TUBE CONSTR
发明人： ARAI MASATOSHI , KIMURA TAKAHIRO , OKADA AKIRA
IPC分类号： E21D9/06
摘要： PURPOSE:To execute a series of works continuously and effectively by making a pipe rack truck loaded with bent units and a pusher truck mounted with a pusher both travel on a track, and moving them to a pipe pushing spot in order. CONSTITUTION:A track 1 is laid down along plural numbers of pipe pushing spots, and a pipe rack truck 3 and a pusher truck 2 are set up on this track free of traveling. Next, in this pipe rack truck 3, there are provided with each loading part of bent units 7 and a transferrer transferring the bent units 7 in direction of the pusher truck 2. Also, in this pusher truck 2, there are provided with a tower body 4 fitted with a working scaffold and a lifting gear 6, and furthermore a pusher body 5 with a pipe chuck body 10, a propelling jacke 11 or the like is set up there. Both these trucks 2, 3 are traveled on the track 1 and moved to required pipe pushing spots in order, thus laying work is continuously performed.

6. 发明专利

JPH01315581A CIRCULAR ARC PROPULSION CONSTRUCTION AND PIPE PROPELLING DEVICE 失效
公开(公告)号：JPH01315581A
公开(公告)日：1989-12-20
申请号：JP14698188
申请日：1988-06-16
申请人： NIPPON KOKAN KK , JAPAN STEEL & TUBE CONSTR
发明人： ARAI MASATOSHI , KIMURA TAKAHIRO , NAKAJIMA TAKASHI , OKADA AKIRA , URAMOTO TOSHIAKI
IPC分类号： E21B7/08
摘要： PURPOSE:To surely prevent the twist of a bent pipe and the drift in a drilling hole during drilling and secure the propulsion direction with high precision by propelling and installing the arc-shaped bent pipe with a spiral fin on the outer periphery under the ground with a pipe propelling device. CONSTITUTION:A main body frame 2 on the base 1 of a propelling device (a) is inclined to match with the incidence angle of a bent pipe P and supported by a support jack 3 at the preset angle, then a bent pipe unit P0 with a spiral fin S on the outer periphery is chucked by a chuck body 4. The chuck body 4 is towed by a propelling jack 5, the bent pipe P is pushed into the ground while the ground is drilled by a drilling bit at its tip, bent units P0 are connected in sequence, the bent pipe P is propelled and installed. High rigidity is applied to the bent pipe P by the spiral fin S, the propulsion direction is secured with high precision. A guide mechanism may be provided to prevent the sway of the rear end of the bent pipe and stabilize the pipe propulsion.

7. 发明专利

JPH01315580A MOUTH PIPE INSTALLING DEVICE FOR CIRCULAR ARC PROPULSION CONSTRUCTION 失效
公开(公告)号：JPH01315580A
公开(公告)日：1989-12-20
申请号：JP14697988
申请日：1988-06-16
申请人： NIPPON KOKAN KK , JAPAN STEEL & TUBE CONSTR
发明人： ARAI MASATOSHI , KIMURA TAKAHIRO , NAKAJIMA TAKASHI , OKADA AKIRA , URAMOTO TOSHIAKI
IPC分类号： E21B7/08
摘要： PURPOSE:To properly and efficiently perform the burial of a mouth pipe by repeating a strike with a monkey driver several times along a guide section. CONSTITUTION:A guide body 2 is adjusted to the preset inclination angle by a jack 3 to match with the incidence angle of a mouth pipe. Guided sections are protruded on both ends of the mouth pipe 19, the guided sections are slidably inserted into guide sections 6 and 7 of a guide body 2, thus the mouth pipe 19 is fitted to the guide body 2. When a driving monkey 4 is lifted upward above the guide body 2 by a lifting means 5 then released, the driving monkey 4 is slid downward along guide sections 6 and 7 and strikes the rear end of the mouth pipe 19. A strike with the driving monkey 4 is repeated several times, thereby the mouth pipe 19 is installed under the ground at the preset depth.

8. 发明专利

JPH01315579A PIPE PRESS-FITTING DEVICE FOR CIRCULAR ARC PROPULSION CONSTRUCTION AND ITS USAGE 失效
公开(公告)号：JPH01315579A
公开(公告)日：1989-12-20
申请号：JP14697888
申请日：1988-06-16
申请人： NIPPON KOKAN KK , JAPAN STEEL & TUBE CONSTR
发明人： ARAI MASATOSHI , KIMURA TAKAHIRO , NAKAJIMA TAKASHI , OKADA AKIRA , URAMOTO TOSHIAKI
IPC分类号： E21B7/08 , E21D9/06 , E21D9/093
摘要： PURPOSE:To properly and efficiently perform the press-fitting of a mouth pipe and the insertion of a bent pipe by connecting the mouth pipe to the tip of the bent pipe, press-fitting the mouth pipe into the ground, fitting a drilling device at the tip of the bent pipe separated from the mouth pipe, and performing the propulsion of the bent pipe. CONSTITUTION:A pipe press-fitting device is provided with a main body frame 2 tiltably provided on a base 1, a support jack 3 supporting the main body frame 2, a chuck body 4 for chucking a pipe slidably provided on the main body frame 2, and a press-fitting jack 5 to move the chuck body 4. A mouth pipe is connected to the tip of a bent pipe to be propelled, the bent pipe is chucked by the chuck body 4 and propelled by the press-fitting jack 5 in sequence, and the mouth pipe is press-fitted into the ground. The mouth pipe is then separated from the bent pipe, a drilling device is fitted to the tip of the bent pipe, the drilling device and the bent pipe are inserted into the mouth pipe, and the bent pipe is propelled.

9. 发明专利

JPH0631065B2 失效
公开(公告)号：JPH0631065B2
公开(公告)日：1994-04-27
申请号：JP21073286
申请日：1986-09-09
申请人： NIPPON KOKAN KK
发明人： KIMURA TAKAHIRO
IPC分类号： B63B27/00 , B63B35/00

10. 发明专利

JPH0560475A COLD HEAT RECOVERING DEVICE FOR LOW-TEMPERATURE LIQUEFIED GAS 失效
公开(公告)号：JPH0560475A
公开(公告)日：1993-03-09
申请号：JP22166691
申请日：1991-09-02
申请人： NIPPON KOKAN KK
发明人： KIMURA TAKAHIRO , HAMADA KENJIRO , OKUBO MASAKAZU , YOSHITOME SHOSHICHI , FUKUHARA TSUGUKAZU
IPC分类号： F28D7/10 , F28F9/24
摘要： PURPOSE:To improve heat exchanging efficiency by providing a heat exchanger with partitioning plates, increasing the flow speed of refrigerant, in a device for recovering cold heat by providing a low-temperature liquefied gas pipeline with the heat exchanger. CONSTITUTION:A low-temperature liquefied gas pipeline 1 is provided with a two-division divided type heat exchanger 2 constituted of an inner pipe 3 and an outer pipe 4. A plurality of partitioning plates 5, on which a notch 5a is formed alternately in the axial direction thereof, are provided. Refrigerant is reciprocated axially through gaps partitioned by partitioning plates 5. When one section in radial direction is considered, the flow speed of the refrigerant becomes a value, in which the flow speed in a case when there is no partitioning plate is multiplied with the number of flow passages in the heat exchanger, when the amount of the refrigerant is same compared with a case having no partitioning plate, whereby a heat transfer coefficient between a heat transfer surface and the refrigerant is increased and the heat transfer area is increased since the partitioning plate itself functions as a fin thereby increasing the exchanging amount of heat.

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