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1. 发明专利

JP2002303240A WICKET GATE STRUCTURE OF FLUID MACHINE 失效
公开(公告)号：JP2002303240A
公开(公告)日：2002-10-18
申请号：JP2001109731
申请日：2001-04-09
申请人： KUBOTA KK
发明人： MIYAUCHI SUNAO , TAKAHASHI AKIHIRO , YAMAMOTO YUKIHIRO , HASHIMOTO YASUSHI
IPC分类号： F03B3/18 , F03B3/04 , F03B11/00
摘要： PROBLEM TO BE SOLVED: To provide a wicket gate structure of a fluid machine such as a side thruster type pump or a small hydroelectric facility, capable of increasing the efficiency without deteriorating the advantage to keep the face-to-face dimension small. SOLUTION: The fluid machine has a pump main shaft 3 extending in the horizontal direction to which an impeller 2 is fixed, and a vertical shaft motor 4 disposed outside a pump casing 1 for driving/rotating the pump main shaft 8. The rotation shaft 6 of the vertical shaft motor 4 and the pump main shaft 3 are connected to each other via an orthogonal conversion power transmission mechanism 5 stored in a gear case 8, which is charged in the pump casing 1, in such a way that they are interlocked with each other. The gear case 8 is supported in the pump casing 1 via plural wicket gates 12, 12,..., and a rotation shaft casing 10 in which the rotation shaft 6 is rotatably stored is extended from the gear case 8 to the pump casing 1.

2. 发明专利

JP2001159124A GATE PUMP 失效
公开(公告)号：JP2001159124A
公开(公告)日：2001-06-12
申请号：JP34211399
申请日：1999-12-01
申请人： KUBOTA KK
发明人： DOI MASATO , MIYAUCHI SUNAO
IPC分类号： E02B7/20
摘要： PROBLEM TO BE SOLVED: To provide a gate pump, with which the weight of the door of the gate is lightened and the cost of door gate itself is reduced by shortening length in the horizontal-shaft direction and decreasing the thickness of the door of the gate, a spindle with a small diameter for lifting and lowering the door and a small-sized door locking device can be used, and equipment cost can be reduced. SOLUTION: A pump-reversing hydraulic turbine 7, having small length of Lx in the horizontal-shaft direction, is combined with a pump main shaft 8, with which a pump impeller 9 is bonded and which is extended in the horizontal direction, and the hydraulic turbine 7 is housed rotatably in a hydraulic-turbine casing 7C. An inlet 7c1 for the hydraulic-turbine casing 7C is supplied with high-pressure water, by starting a high-pressure pump 12A in a fluid supply system 12 with the high-pressure pump 12A, a high-pressure water supply pipe 12B and a suction pipe 12C, and the gate pump 6 is operated by driving the hydraulic turbine 7.

3. 发明专利

JP2000291112A AFTER-FITTED PREWHIRL TANK 失效
公开(公告)号：JP2000291112A
公开(公告)日：2000-10-17
申请号：JP9809499
申请日：1999-04-05
申请人： KUBOTA KK
发明人： MIYAUCHI SUNAO , TAKAHASHI AKIHIRO
IPC分类号： E03F5/02
摘要： PROBLEM TO BE SOLVED: To provide an after-fitted prewhirl tank easily installed in a manhole, with arrangement based on design by considerably reducing discrepancy, and sufficiently absorbing small discrepancy that may occur although considerably reduced. SOLUTION: A frame 10 is separated into a lower frame 30 and a pair of upper frames 32A, 32B mounted on a pair of upper frame fitting parts 31A, 31B provided at the upper end of the lower frame 30. The upper frames 32A, 32B are rigidly fixed in the state of closing frame corresponding holes 2A, 2B provided piercing a prewhirl tank 2. The lower frame 30 is installed by means of anchor bolts 17, 17 at the bottom part of a manhole 1 into which the prewhirl tank 2 is carried, and the upper frames 32A, 32B are placed on the upper frame fitting parts 31A, 31B of the lower frame 30 and integrally connected.

4. 发明专利

JP2000045379A COLLECTING PIPE ON PUMP DISCHARGE SIDE 失效
公开(公告)号：JP2000045379A
公开(公告)日：2000-02-15
申请号：JP21100598
申请日：1998-07-27
申请人： KUBOTA KK
发明人： MIYAUCHI SUNAO , TAKAHASHI AKIHIRO , YAMAMOTO YOSHIFUMI , MATSUDA YOSHIHIRO
IPC分类号： E03F5/22
摘要： PROBLEM TO BE SOLVED: To avoid the increase of pipeline resistance due to the reduction of water-conveyance sectional area by preventing leaving on the inside of a collecting pipe of scum, oil, etc., contained in sewage regardless of the number of pumps operated and adhesion on the internal surface of the collecting pipe with time or deposition on the inside of the collecting pipe of small solid bodies such as sand, pebbles, etc. SOLUTION: The outlets of discharge pipes 2A, 2B connected to the discharge openings of two pumps P1, P2 are connected while being directed in the tangential direction to the collecting pipe respectively. Consequently, a normal flow in the discharge pipe 2A is changed into a whirling flow S in the collecting pipe 3. Accordingly, flow velocity in the collecting pipe is increased, the leaving of scum, oil, etc., adhesion with time or the deposition, etc., of small solid bodies such as sand, pebbles, etc., are prevented, and the augmentation of pipeline resistance due to the reduction of a water-conveyance sectional area is avoided.

5. 发明专利

JPH1161970A PUMPING STATION 失效
公开(公告)号：JPH1161970A
公开(公告)日：1999-03-05
申请号：JP22369497
申请日：1997-08-20
申请人： KUBOTA KK
发明人： MIYAUCHI SUNAO , NISHIMURA MISUO , ONISHI YASUHIRO , TAKAHASHI AKIHIRO
IPC分类号： E03F5/22
摘要： PROBLEM TO BE SOLVED: To solve a defect, in which the burdens of pumps installed to pump wells on the downstream side are increased, while preventing the remaining of scum, residue, grits, etc., by rationalizing the quantity of the diversion of water and scum, residue, grits, etc., washed away into a pair of the pump wells from an inflow waterway by flush. SOLUTION: When scum, residue, grits, etc., are deposited on the base of an inflow waterway 1, a gate 12 installed in the upstream of the main waterway 1 is closed and water is stored and the gate 12 is opened, and a large quantity of water is discharged suddenly to the main waterway 1, accelerated by an inclined stepped section 6 inclined at a downgrade from the upstream side to the downstream side, and made to interfere in a water-conveyance surface 13A at the upstream end of a divided base section 13 as shown in the arrows Y1 and diverted to a lateral communicating passage 5 and introduced into pump wells 3. A flow passed through a narrow width section 1A is made to interfere in a water-conveyance surface 14 at a downstream end as shown in the arrows Y2, diverted to the lateral communicating passage 4 and introduced into pump wells 2.

6. 发明专利

JPH10266328A PUMP FIELD 失效
公开(公告)号：JPH10266328A
公开(公告)日：1998-10-06
申请号：JP7810797
申请日：1997-03-28
申请人： KUBOTA KK
发明人： MIYAUCHI SUNAO , YAMAMOTO YOSHIFUMI , SHINASUE TAROU , TAKAHASHI AKIHIRO
IPC分类号： E03F5/22 , F04D29/44
摘要： PROBLEM TO BE SOLVED: To solve a disadvantage of one pump having large lords by equally introducing scum, dross, sedimentation, or the like forcibly flowed in an inlet bath through flush into two conduits, and making an inlet quantity of scum, dross, sedimentation, or the like uniform by means of two pumps. SOLUTION: When scum, dross, sedimentation, or the like are accumulated in the bottom surface of a main water conduit 1, for example, water storage is done by opening a gate installed at the upstream side of the main water conduit 1. In addition, by a flush of discharging a great deal of water abruptly through open of the gate, scum, dross, sedimentation, or the like are made to flow forcibly in the inlet bath 2, followed by being interfered with a projection 8 provided in a chevron enlargement toward the main water conduit 1 between inlets of flow conduits 5A, 5B respectively so as to be conducted in two inflow conduits 5A, 5B through equal separation shown by each arrow Y1 and Y2 and then be made to flow down in prewhirl baths 4A, 4B therefrom.

7. 发明专利

JPH10159166A PUMP SITE 失效
公开(公告)号：JPH10159166A
公开(公告)日：1998-06-16
申请号：JP31806696
申请日：1996-11-28
申请人： KUBOTA KK
发明人： MIYAUCHI SUNAO
IPC分类号： E03F5/22 , F04D29/44
摘要： PROBLEM TO BE SOLVED: To reduce residual water quantity in a prewhirl tank on the pump stoppage side. SOLUTION: A water level in a suction sump 2 is lowered to an upper end level of a partition wall 7 by driving a pump P1, and water in the prewhirl tank 4B is pumped up by the pump P1 by flowing water toward the prewhirl tank 4B from an upstream part 2A of the suction sump 2 as an arrow X1 and flowing it into a prewhirl tank 4A from a first inflow passage 6A as a water level of the prewhirl tank 4A is lowered down to a level on a bottom of the upstream part 2A (lower end level of cutout part 7A) by driving continuation of the pump P1. In the meantime, a shared region 11 is recessively provided on a downstream part 2B of the suction sump 2, and as the water levels of the prewhirl tanks 4A, 4B are lowered to the level of the bottom of the upstream part 2A, a water level of the shared region 11 is lowered to the same level. Thereafter, water of the prewhirl tank 4B is flown toward the prewhirl tank 4B from the shared region 11 as an arrow Y1 by driving continuation of the pump P1, and it is pumped up by the pump P1 by flowing it from a second inflow passage 12A to the prewhirl tank 4A.

8. 发明专利

JPH1088655A PREWHIRL TYPE SUCTION DEVICE 失效
公开(公告)号：JPH1088655A
公开(公告)日：1998-04-07
申请号：JP24834496
申请日：1996-09-19
申请人： KUBOTA KK
发明人： MIYAUCHI SUNAO , YAMAMOTO YOSHIFUMI , SHINASUE TAROU
IPC分类号： E03F5/22 , F04D29/44
摘要： PROBLEM TO BE SOLVED: To lower the shutdown water level of a pump up to a low level, to reduce the quantity of remaining water, to suck suspended matter such as scum effectively while inhibiting the generation of a drift flowing in the opposite direction to the direction of rotation of the pump and to prevent the horse power excess of the pump by obviating the suction of air into the pump on an existing pumping station and suppressing the deterioration of the performance of the pump and the generation of vibrations and noises. SOLUTION: The prewhirl type suction device is installed to the water absorption tank 2 of an existing pumping station, and used by charging a suction port 4 for an existing pumping P to the inside of a peripheral wall 3A. Sewage in the water absorption tank 2 is introduced to the inside of the peripheral wall 3A from an inflow path 3B by operating the pump P at that time, and tuned in the same direction as the direction of rotation R of an impeller for the pump P in an annular flow path 5 on the inside of the peripheral wall 3A and sucked from the suction port 4 for the pump P.

9. 发明专利

JPH09221820A POSTERIORLY FITTED PREROTATION TANK MADE OF FIBER-REINFORCED PLASTIC 失效
公开(公告)号：JPH09221820A
公开(公告)日：1997-08-26
申请号：JP3095296
申请日：1996-02-19
申请人： KUBOTA KK
发明人： YONEMURA SHOICHI , SHINASUE TAROU , MIYAUCHI SUNAO , YAMAMOTO YOSHIFUMI
IPC分类号： E03F5/22 , F04D29/44
摘要： PROBLEM TO BE SOLVED: To facilitate the work by installing a pump having the prescribed capacity while a pump fitting portion is stored in a mount seat, and installing a pump having a large capacity while the pump fitting portion is extruded from the mount seat. SOLUTION: Multiple prerotation tanks to be individually inserted with the suction ports of multiple pumps are recessed at the prescribed intervals in the width direction at the eccentric positions on one side. Fitting portions of multiple pumps are mounted on a mount seat 10 provided near multiple prerotation tanks and made of a board-like body. The mount seat 10 is fixed to a frame 11 erected on the bottom section of a suction water tank of pumps, and mortar or concrete is placed in the whole space area surrounded by the peripheral wall inner face of the suction water tank of pumps, the upper face of the bottom section, and the prerotation tanks. The limitation on the capacity of the pumps capable of being installed is mitigated, and the fitting work of the fitting portions of the pumps to the mount seat can be simplified.

10. 发明专利

JPH0978680A SUCTION WATER TANK OF PUMP 失效
公开(公告)号：JPH0978680A
公开(公告)日：1997-03-25
申请号：JP23294295
申请日：1995-09-11
申请人： KUBOTA KK
发明人： YONEMURA SHOICHI , MIYAUCHI SUNAO , YAMAMOTO YOSHIFUMI , SHINASUE TAROU , ONISHI YASUHIRO , KIBE KOJI
IPC分类号： E03F5/22
摘要： PROBLEM TO BE SOLVED: To prevent soil water and scum from remaining in a preliminary rotating tank on a stop side, at the same time, increase the velocity of an outlet in a head raced, increase the volume of soil water flowing from a lower tank section of the preliminary rotating tank on the stop side to a lower tank section of a preliminary rotating tank on a driving side through a head race and to promote suction performance of soil water and scum with the pump. SOLUTION: A preliminary rotating tank 4 inserting an air inlet 3 of a pump P1 therein and a preliminary rotating tank 5 inserting an air inlet 3 of a pump P2 therein are recessed on the bottom 2 of a suction water tank 1 of the pumps, and the preliminary rotating tanks 4 and 5 are divided into the upper tank sections and lower tank sections with partition plates 10 forming through-holes 9 with a small diameter. The lower tank sections of the preliminary rotating tanks 4 and 5 are connected to each other through a culvert type head race 6.

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