WO2013069418A1 - ピットバーレル型ポンプおよびその組込み方法 - Google Patents
ピットバーレル型ポンプおよびその組込み方法 Download PDFInfo
- Publication number
- WO2013069418A1 WO2013069418A1 PCT/JP2012/076709 JP2012076709W WO2013069418A1 WO 2013069418 A1 WO2013069418 A1 WO 2013069418A1 JP 2012076709 W JP2012076709 W JP 2012076709W WO 2013069418 A1 WO2013069418 A1 WO 2013069418A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pit
- pump
- suction port
- vortex generation
- barrel
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
- F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
Definitions
- the present invention relates to a pit barrel type pump in which a vertical shaft pump is housed in an airtight pit and a method for incorporating the pit barrel type pump.
- Patent Document 1 An example of a conventional pit barrel type pump is described in Patent Document 1.
- a suction port is formed on the upper side surface of a bottomed cylindrical pit barrel having an open ceiling. Then, the vertical shaft pump is suspended from the upper opening of the pit barrel.
- a flange is provided in the discharge pipe portion of the vertical shaft pump, and the inside of the pit barrel is kept airtight by closing the opening of the pit barrel.
- the fluid sucked from the suction port of the pit barrel descends between the inner wall surface of the pit and the outer peripheral surface of the vertical pump suspended inside the pit, and reaches the bottom of the pit. It flows into the pump from the outer periphery of the pump suction port.
- the fluid whose direction of flow is changed by about 180 degrees at the pump suction port is sucked vertically upward by the rotational force of the pump impeller, and is discharged to the discharge pipe through the impeller and the diffuser.
- Patent Documents 2 to 4 describe that a turning prevention means is provided in the suction port of the vertical shaft pump.
- the vertical shaft described in Patent Document 2 is equipped with a suction vortex preventing member located at the lower end of the pump in order to prevent suction vortex.
- the suction vortex prevention member includes an annular upper frame portion, a plurality of support portions extending vertically downward from the upper frame portion, a lower frame portion provided at a lower end of the support portion, and a predetermined support at a lower portion of the suction bell in the mounted state. And a baffle plate extending toward the axial center of the suction bell.
- a sub-flow channel forming body that forms a sub-channel between the outer peripheral surface of the suction portion and the outer periphery of the suction portion having a suction port installed in the open channel is substantially provided. They are arranged concentrically. Further, in the vertical shaft pump of Patent Document 4, a rectifying plate device provided with a rectifying plate that rectifies water flowing into the suction bell mouth is provided on the bottom surface of the suction water tank below the tip of the suction bell mouth, and the suction bell device is provided with the suction bell device. The mouse is fixed.
- the suction vortex prevention means of the vertical shaft pumps described in Patent Documents 2 to 4 are considered to be effective means for preventing the generation of suction vortices.
- the pumps described in these publications do not contain a vertical shaft pump in a pit that is configured to be completely airtight, and a sufficient liquid storage part is formed in an open channel or in a lateral direction. It is a pit structure.
- the inflow direction to the vertical pump does not change by approximately 180 degrees at the pump suction section, and in many cases, the flow changes only by 90 degrees.
- the size in the width direction of the vortex preventing means provided at the pump suction port is not limited, and can be formed with a sufficient width. That is, in the vertical shaft pumps described in these publications, it is not sufficiently considered that the vortex preventing means is stored in a limited space such as a pit. In pit barrel type pumps, there is a demand for downsizing of the pits, and it is necessary to prevent the generation of a flow that is unstable or decreases in efficiency due to downsizing of the pits.
- the present invention has been made in view of the above-mentioned problems in the prior art, and an object of the present invention is to provide a suction vortex prevention means in which the pit barrel type pump does not cause downsizing and performance degradation of the pit barrel. Another object of the present invention is to realize a suction vortex preventing means that is excellent in downsizing and maintainability of a pit barrel in a pit barrel type pump.
- a feature of the present invention that achieves the above object is that, in a pit barrel type pump in which a vertical pump is suspended and accommodated in a barrel type pit, the vertical pump sucks a working fluid, and a pump suction port provided at a lower end portion thereof.
- a vortex generation prevention device is attached to the pump suction port, and the outer diameters of the pump suction port and the vortex generation prevention device are made smaller than the maximum outer diameter of the diffuser to prevent the vortex generation together with the vertical shaft from the pit.
- the device can be removed, and the vortex generation preventing device includes a base member and a plurality of plate-like members arranged on the outer peripheral side of the base member at intervals in the circumferential direction. And a blanking is obtained by integrating the pump suction port and the vortex prevention apparatus by fixing the plurality of ribs to the pump suction port.
- the base member of the vortex generation prevention device is preferably formed by combining a flat plate or a flat plate formed in a tapered shape with a member formed in a circular plate or a cone shape.
- the pit may be made of reinforced plastic, the pit is formed in a bottomed cylindrical shape, and the bottom surface in contact with the pit of the vortex generation prevention device is formed with a curved surface with the outer peripheral portion warped upward. May be.
- Another feature of the present invention for achieving the above object is to form a recess for accommodating a barrel-type pit having a flange formed at the upper end portion on the ground surface, and then hold the barrel-type pit in the recess.
- a vertical shaft pump is accommodated in the pit by bringing a flange formed on the vertical pump into contact with a flange of the pit, the vertical pump is suspended, and the vertical pump accommodated in the pit has the above characteristics. Is.
- the turning prevention means having a smaller diameter than the pump outer diameter is fixed to the pump suction port.
- Suction vortex prevention means that does not cause downsizing and performance degradation can be obtained.
- FIG. 3 is a cross-sectional view of the pit barrel type pump shown in FIG.
- FIG. 4 is a transverse cross-sectional view of the pit barrel type pump shown in FIG.
- FIG. 6 is a cross-sectional view taken along line 10 of the pit barrel type pump shown in FIG. 5.
- the longitudinal cross-sectional view of the further another Example of the pit barrel type pump which concerns on this invention.
- FIG. 1 is a longitudinal sectional view showing an embodiment of a pit barrel type pump 50 according to the present invention.
- the pit barrel type pump 50 is used, for example, as a brine circulation pump in a multi-stage flash type seawater desalination plant.
- the interior of the barrel pit 1 is filled with fluid.
- An example of this seawater desalination pump is described in Non-Patent Document 1, which has a diameter of 900 mm, a design point flow rate of 137.2 m 3 / min, a lift of 21.5 m, and a required power of 670 kW.
- a pit suction port 9 for supplying hydraulic fluid (water or seawater) to the pit 1 is provided at the upper side of the barrel type pit 1 formed in a bottomed cylindrical shape. It is formed substantially perpendicular to the axis of the pit 1.
- pit 1 is made of stainless steel, other highly corrosion-resistant metals, or reinforced plastics typified by GFRP mixed with FRP or glass fiber. Corrosion resistance and pressure strength Is secured.
- the pit 1 since the pit 1 becomes airtight when the pump 50 is operated, it has a shape corresponding to the pressure vessel. Therefore, the bottom of the pit 1 has a shape that bulges downward like a mirror plate. In many cases, the upper end portion of the pit 1 is installed on the ground surface or below. After pit 1 is buried in the ground, the surroundings are buried with concrete or the like.
- the vertical shaft pump 8 is accommodated in the pit 1.
- the vertical shaft pump 8 has a discharge pipe 12 in which a bent pipe part 12b is formed on an upper part of a straight part 12a extending vertically.
- the bent pipe part 12b has a pipe extending in the horizontal direction. It is connected.
- a flange 12 c is attached below the bent pipe portion 12 b of the discharge pipe 12 and is bolted to a flange 1 a provided at the upper end of the pit 1. Thereby, the vertical shaft pump 8 is suspended in the pit 1 in an airtight manner.
- the pump suction port 2 located at the lower end of the vertical shaft pump 8 has a bell mouth shape that forms a reduced flow path.
- an impeller casing 6 a and a diffuser casing 7 a are provided in order, and the diffuser casing 7 a is connected to the straight portion 12 a of the discharge pipe 12.
- the rotary shaft 5 extends in the vertical direction through the discharge pipe 12, and the upper portion of the rotary shaft 5 is rotatably supported by an upper bearing 14 provided on the outer upper side of the bent pipe portion 12 b of the discharge pipe 12. .
- a shaft seal device 13 is attached between the bent pipe portion 12 b and the upper bearing 14. The shaft seal device 13 seals the working fluid of the vertical shaft pump 8 from leaking to the outside.
- the upper end of the rotating shaft 5 is connected to a prime mover (not shown).
- a mixed flow impeller 6 provided with a plurality of blades at intervals in the circumferential direction is attached to the lower end portion of the rotating shaft 5, and is fixed to the rotating shaft 5 with a nut 5a.
- a diffuser 7 is disposed on the back side of the impeller 6, and a lower bearing 15 is held on the inner peripheral portion of the diffuser 7 on the boss side.
- the lower bearing 15 supports the rotating shaft 5 together with the upper bearing 14 so as to be rotatable.
- the vortex generation preventing device 4 is provided in the suction port 2 formed in a bell mouth shape.
- 1 includes a cone-shaped member (base member) 4a having a trumpet-shaped cross section and a plurality (eight in the figure) on the outer peripheral portion of the cone-shaped member 4a.
- plate-like ribs 3 arranged at almost equal intervals.
- the rib 3 is provided in order to form a flow path to the suction port 2 and to hold the cone-like member 4 a in the suction port 2.
- the rib 3 and the inlet 2 and the rib 3 and the cone-like member 4a are welded or bolted to each other.
- the pit barrel type pump 50 configured as described above will be described below.
- the fluid sucked as the flow Fa from the suction port 9 of the pit 1 located at the upper part of the pit 1 formed in the barrel type wraps around the linear portion 12 a of the vertical shaft pump 8.
- the flows Fc and Fd are vertically downward from the suction port 9 of the pit 1 to the suction port 2 of the pump 8 between the inner wall surface of the pit 1 and the outer peripheral surface of the vertical pump 8.
- the impeller 6 is driven by a motor (not shown) connected to the main shaft 5. And energy is given to the water which is the working fluid sucked from the suction port 2 of the vertical shaft pump 8 by the rotation of the impeller 6, and the pressure of the fluid is increased.
- the diffuser 7 is a stationary flow path and rectifies the circumferential swirl component of the flow imparted to the fluid by the impeller 6 in the axial direction to recover the pressure.
- the vortex generation preventing device 4 is provided at the lowermost part of the pit 1. Is provided.
- a cone-shaped vortex generation prevention device 4 is attached instead of the rotation prevention plate.
- the pressure of the fluid at the suction port 9 of the pit 1 is equal to or lower than atmospheric pressure. Furthermore, the depth of the pit 1 tends to be shallow in order to reduce the cost of civil engineering and pit 1 production. Therefore, the pump pushing pressure in the vicinity of the suction port 2 of the pump 8 is low, and the pump 8 is used under the condition that cavitation generated in the underwater vortex and the impeller is likely to occur as compared with a general pump having a free surface in contact with the atmosphere. Therefore, the vortex generation prevention device 4 installed at the suction port 2 of the pump 8 prevents the generation of the underwater vortex and uniformly prevents the flow of the fluid flowing down from the upper part of the pit 1. It is required to guide to the impeller 6.
- the material of the barrel-type pit 1 a reinforced plastic represented by GFRP mixed with stainless steel, other metals, FRP or glass fiber is used.
- the pit 1 is made of reinforced plastic.
- the suction port 2 and the vortex generation prevention device 4 are integrated by fastening the vortex generation prevention device 4 with the rib 3 below the suction port 2 of the vertical shaft pump 8. In this way, the vertical shaft pump 8 with the vortex generation preventing device 4 can be suspended from the upper side in the pit 1.
- the suction port 2 is provided with ribs 3 in which a plurality of cone-shaped members 4a for preventing vortex generation are arranged in the circumferential direction below the suction port 2 of the pump 8 suspended from the upper part of the pit 1. It is integrated with. Since the vertical shaft pump 8 has such a configuration, the outermost diameter ⁇ d 0 of the suction port 2 is larger than the outermost diameter ⁇ d 3 of the diffuser 7 so as not to hinder the flow of fluid from above the pit 2. It is desirable to make it smaller.
- FIG. 2 is a cross-sectional view of the vortex generation preventing device 4 integrated with the suction port 2 and the rib 3 of the vertical shaft pump 8.
- FIG. 2 is a view taken along section line 10 of FIG.
- the cone-shaped vortex generation preventing device 4 is disposed concentrically with the pump suction port 2. Since the cone-shaped vortex generator 4 is installed below the suction port 2 of the pump 8, it is possible to suppress a rapid acceleration flow that is locally generated at the suction port 2 of the pump 8. As a result, generation of underwater vortices can be prevented.
- the rotating shaft 5 of the pump 8 is connected to the vortex generating preventing device. If the shaft end of the rotary shaft 5 is rotationally supported by a bearing that extends to the cone-shaped member 4a and is held by the cone-shaped member 4a, the amount of overhang can be reduced.
- the vortex generation prevention device it is not necessary to attach a vortex generation prevention device to the bottom side of the barrel type pit, it becomes possible to design with priority on the pit manufacturability, and the pit production cost can be reduced.
- the vortex generation prevention device can be attached to the bottom of the pit by welding, so that the shape can be changed, but the pit production and maintenance are not good.
- the pit is manufactured with reinforced plastic or the like, it is difficult to change the shape of the pit by modifying the pit itself, resulting in a change in strength and the manufacturing cost increases. In this embodiment, however, the pit itself is not changed. Because there is no, it is rich in manufacturability and economy.
- the vortex generation preventing device 4 since the vortex generation preventing device 4 is arranged between the pit 1 and the suction port 2 of the pump 8, the impeller inlet backflow accompanied by cavitation generated during operation in the partial flow rate region of the pump is generated. It is possible to prevent the pit 1 from being damaged. Even if the vortex generation preventing device 4 is damaged, if the suspended pump 8 is pulled up, the vortex generation preventing device 4 can be taken out at the same time as the pump 8 is pulled up. become.
- the vortex generation prevention device 4 can be easily taken out, so that handling is easier than when the vortex generation prevention device is fixedly installed on the bottom surface of the pit. Becomes easier. Furthermore, according to this embodiment, when the pump suspended in the pit is updated, the vortex generation preventing device can be designed without considering the shape of the bottom of the pit, so that the existing pit 1 can be used. The time and cost required for renewing the pump can be suppressed.
- FIGS. 3 is a longitudinal sectional view of the pit barrel type pump 50
- FIG. 4 is a transverse sectional view taken along a sectional line 10 in FIG.
- the present embodiment is different from the above embodiment in that it is not a cone-shaped vortex generation prevention device, but a rotation prevention plate 11 combined in a cross shape is attached to a circular flat plate (base member) 4c to be used for the vortex generation prevention device 4b. There is that. Since the underwater vortex is generated due to a decrease in pressure at the swirling center of the swirling flow, the swirling flow near the suction port 2 of the pump 8 is suppressed by providing the swirl prevention plate 11 shown in FIG.
- the anti-rotation plate 11 is a combination of four plates of height h and length L / 2 in a cross shape. Each swivel prevention plate 11 is tapered in the height direction so that the flow is sucked into the impeller 6 more smoothly.
- the pit bottom can be designed with priority on manufacturability in the pit barrel type pump. Further, damage to the bottom of the pit can be prevented, and maintenance and shape change of the vortex generation preventing device can be facilitated. Furthermore, when the pump is updated, the existing pit can be easily used.
- FIGS. 5 is a longitudinal sectional view of the pit barrel type pump 50
- FIG. 6 is a transverse sectional view taken along a sectional line 10 in FIG.
- a structure in which a swirl prevention plate 11b for further suppressing swirl flow is added to the cone-like member 4a of the vortex generation preventing apparatus 4 of the embodiment shown in FIG. Others are the same as the embodiment shown in FIG.
- the rotation preventing plate 11b has a height h, a thickness t, and a length L in the outer diameter direction when combined with the cone-shaped member 4a.
- the pit bottom As in the embodiment shown in FIG. 1, it is possible to design the pit bottom with priority on manufacturability. Further, damage to the bottom of the pit can be prevented, and maintenance and shape change of the vortex generation preventing device can be facilitated. Furthermore, the existing pit 1 can be easily used when the pump is updated.
- FIG. 7 is a longitudinal sectional view of the pit barrel type pump 50.
- the shape of the pit 1a is different from the embodiment shown in FIG. Conventionally, considering the pressure resistance of the pit 1, the bottom surface 1b of the pit 1 has a shape bulging outward like the end plate of the pressure vessel.
- the plane 1d It is also possible to make it. That is, this is the case where the pit is thick, the stress applied to the pit is small, and the like. In this way, the productivity of the pit and the productivity of the pit peripheral part are improved.
- the bottom surface of the pit 1a has a flat bottomed cylindrical shape, a corner is formed at the lower corner of the pit 1a, which may cause stagnation of the flow. Since these cause the generation of the suction vortex, in this embodiment, the bottom surface side outer peripheral portion 4g of the cone-like member 4f constituting the vortex generation preventing device 4 has a curved shape bent upward. Further, the outer diameter ⁇ dv cone-shaped member 4f, are larger than the outer diameter .phi.d 0 of the suction port 2b of the pump 8. Others are the same as the embodiment shown in FIG.
- the shape of the bottom of the cone-shaped member 4a shown in FIG. 1 has a curvature, and the fluid flowing down from the upper part of the pit 1a can be more smoothly guided to the suction port 2b of the pump 8. Furthermore, the outermost diameter part of the suction port 2b of the pump 8 is also curved upward so that the flow flowing from the upper side of the pit 1a into the suction port 2b of the pump 8 becomes smoother. Regardless of the shape of the bottom of the pit, it is possible to control the flow so that the flow is smoothly guided to the suction port 2b of the pump 8, and the generation of underwater vortices can be prevented. As a result, since the flow which flows in into the suction inlet 2b from the upper part of the pit 1a can be controlled, the loss which generate
- FIG. 8 is a longitudinal sectional view of the pit barrel type pump 50.
- the present embodiment differs from the embodiment shown in FIG. 7 only in the shape of the suction port 2d of the vertical shaft pump 8.
- the outer peripheral side of the suction port 2a is warped upward, and the flows Fe and Ff are smoothly guided to the suction port 2a.
- the recess 2c formed on the outer peripheral side of the suction port 2d is covered with the member 2f.
- the outer peripheral portion of the suction port 2d becomes substantially cylindrical shape having an outer diameter .phi.d 5, are gone constriction.
- the structure is such that the loss due to the expansion and contraction of the flow path between the lower flange surface of the diffuser 7 and the upper portion of the suction port 2d of the pump 8 is reduced, but the maximum diameter of the suction port 2 of the pump 8 is reduced. If the diameter is the same as or smaller than the maximum diameter of the diffuser 7, the same effect as described above can be obtained.
- the anti-swivel device is integrally provided at the suction port of the pump, and the maximum diameter of the pump is the maximum diameter of the diffuser part, so that the flow formed between the outer periphery of the pump and the inner periphery of the pit
- the space can be defined by the size of the pump, and there is no need to change the inner diameter of the pit according to the anti-turning device. That is, once the pump specifications are determined, the pit specifications can be determined and the pits can be downsized.
- the example which manufactured the pit with the reinforced plastic was demonstrated in the said Example, as above-mentioned, what is excellent in corrosion resistance, such as stainless steel, other metals, GFRP which mixed FRP and glass fiber, etc.
- the present invention can also be applied to pits made of various materials. Further, when the surface treatment or the like can be performed even if the corrosion resistance is not so much, when using in an environment where the corrosion resistance is not required, of course, other materials may be used and the present invention can be applied.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims (5)
- バーレル型のピット内部に立軸ポンプを吊り下げ収容したピットバーレル型ポンプにおいて、
前記立軸ポンプは作動流体を吸込むため下端部に設けた縮小流路を形成するベルマウス形状のポンプ吸込口と、この吸込口に隣り合い回転軸に取り付けられた羽根車と、羽根車の下流側に配置され羽根車で旋回成分を付与された作動流体を昇圧するディフューザとを備え、前記ポンプ吸込口の下側であってこのポンプ吸込口に渦発生防止装置を付設し、前記ポンプ吸込口および前記渦発生防止装置の外径を前記ディフューザの最大外径よりも小径として前記ピットから前記立軸ポンプとともに前記渦発生防止装置を取り出し可能にし、前記渦発生防止装置は、ベース部材とこのベース部材の外周側に周方向にほぼ等しい間隔を置いて配置した板状の複数のリブとを有し、前記複数のリブを前記ポンプ吸込口に固定することにより前記渦発生防止装置と前記ポンプ吸込口を一体化したことを特徴とするピットバーレル型ポンプ。 - 前記渦発生防止装置の前記ベース部材を、平板またはテーパ状に形成された平板を円板またはコーン状に形成した部材と組み合わせて形成したことを特徴とする請求項1に記載のピットバーレル型ポンプ。
- 前記ピットが、強化プラスティック製であることを特徴とする請求項1または2に記載のピットバーレル型ポンプ。
- 前記ピットを有底円筒状に形成し、前記渦発生防止装置のピットに接する底面を外周部が上に反った曲面で形成したことを特徴とする請求項1ないし3の何れか1項に記載のピットバーレル型ポンプ。
- 上端部にフランジが形成されたバーレル型のピットを収納する凹部を地表面に形成した後バーレル型のピットをこの凹部に保持し、前記ピットのフランジに立軸ポンプに形成したフランジを当接させて立軸ポンプを前記ピット内に収容するとともに前記立軸ポンプを吊り下げ状態で収容し、前記立軸ポンプを請求項1ないし4のいずれかに記載の立軸ポンプとしたことを特徴とするピットバーレル型ポンプの組込み方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020147012445A KR101598165B1 (ko) | 2011-11-10 | 2012-10-16 | 피트 배럴형 펌프 및 그 장착 방법 |
EP12847327.9A EP2778422A4 (en) | 2011-11-10 | 2012-10-16 | PIT BASIN AND METHOD FOR THE PRODUCTION THEREOF |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011246613A JP5789487B2 (ja) | 2011-11-10 | 2011-11-10 | ピットバーレル型ポンプおよびその組込み方法 |
JP2011-246613 | 2011-11-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013069418A1 true WO2013069418A1 (ja) | 2013-05-16 |
Family
ID=48289802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/076709 WO2013069418A1 (ja) | 2011-11-10 | 2012-10-16 | ピットバーレル型ポンプおよびその組込み方法 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2778422A4 (ja) |
JP (1) | JP5789487B2 (ja) |
KR (1) | KR101598165B1 (ja) |
WO (1) | WO2013069418A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104500451A (zh) * | 2014-12-06 | 2015-04-08 | 无锡高卓流体设备有限公司 | 一种潜水泵导叶体 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014071278A2 (en) | 2012-11-05 | 2014-05-08 | Fluid Handling Llc | Flow conditioning feature for suction diffuser |
KR101506945B1 (ko) | 2014-05-12 | 2015-03-30 | 한국건설기술연구원 | 와류방지장치 |
JP6523097B2 (ja) * | 2015-08-06 | 2019-05-29 | 株式会社日立製作所 | 立軸ポンプ |
WO2020231856A1 (en) * | 2019-05-10 | 2020-11-19 | Pyrotek, Inc. | Overflow vortex transfer system with baffles |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55104799U (ja) * | 1979-01-18 | 1980-07-22 | ||
JPS56109697U (ja) * | 1980-01-25 | 1981-08-25 | ||
JPS56127381U (ja) * | 1980-02-28 | 1981-09-28 | ||
JPS608492A (ja) * | 1983-06-27 | 1985-01-17 | Toshiba Corp | 非常用炉心冷却ポンプ装置 |
JPS6357899A (ja) * | 1986-08-28 | 1988-03-12 | Mitsubishi Heavy Ind Ltd | 竪型バレルポンプ |
JPS63183397U (ja) * | 1987-05-13 | 1988-11-25 | ||
JPH07324700A (ja) | 1994-05-30 | 1995-12-12 | Kubota Corp | 立軸バレルピットポンプ |
JP2002147383A (ja) | 2000-11-16 | 2002-05-22 | Ebara Corp | 立軸ポンプ装置 |
JP2002155898A (ja) | 2000-06-23 | 2002-05-31 | Ebara Corp | ポンプ渦防止装置 |
JP2010190184A (ja) | 2009-02-20 | 2010-09-02 | Torishima Pump Mfg Co Ltd | ポンプ用吸込渦防止部材 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE865862A (fr) * | 1978-04-11 | 1978-10-11 | Acec | Perfectionnements aux pompes centrifuges en cuve |
JP2002005094A (ja) * | 2000-06-23 | 2002-01-09 | Ebara Corp | ユニット型吸込ベルマウス |
JP2006194100A (ja) * | 2005-01-11 | 2006-07-27 | Torishima Pump Mfg Co Ltd | 渦流防止装置 |
JP2006299944A (ja) * | 2005-04-21 | 2006-11-02 | Mitsubishi Heavy Ind Ltd | 立型ポンプ |
JP4690134B2 (ja) * | 2005-07-19 | 2011-06-01 | 株式会社荏原製作所 | 立軸ポンプおよびポンプ機場 |
KR100972202B1 (ko) * | 2008-10-10 | 2010-07-23 | 주식회사 포스코 | 해수 펌프 |
-
2011
- 2011-11-10 JP JP2011246613A patent/JP5789487B2/ja active Active
-
2012
- 2012-10-16 EP EP12847327.9A patent/EP2778422A4/en not_active Withdrawn
- 2012-10-16 KR KR1020147012445A patent/KR101598165B1/ko active IP Right Grant
- 2012-10-16 WO PCT/JP2012/076709 patent/WO2013069418A1/ja active Application Filing
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55104799U (ja) * | 1979-01-18 | 1980-07-22 | ||
JPS56109697U (ja) * | 1980-01-25 | 1981-08-25 | ||
JPS56127381U (ja) * | 1980-02-28 | 1981-09-28 | ||
JPS608492A (ja) * | 1983-06-27 | 1985-01-17 | Toshiba Corp | 非常用炉心冷却ポンプ装置 |
JPS6357899A (ja) * | 1986-08-28 | 1988-03-12 | Mitsubishi Heavy Ind Ltd | 竪型バレルポンプ |
JPS63183397U (ja) * | 1987-05-13 | 1988-11-25 | ||
JPH07324700A (ja) | 1994-05-30 | 1995-12-12 | Kubota Corp | 立軸バレルピットポンプ |
JP2002155898A (ja) | 2000-06-23 | 2002-05-31 | Ebara Corp | ポンプ渦防止装置 |
JP2002147383A (ja) | 2000-11-16 | 2002-05-22 | Ebara Corp | 立軸ポンプ装置 |
JP2010190184A (ja) | 2009-02-20 | 2010-09-02 | Torishima Pump Mfg Co Ltd | ポンプ用吸込渦防止部材 |
Non-Patent Citations (2)
Title |
---|
See also references of EP2778422A4 * |
TOMOKI NAKANO: "91st Seminar of Turbomachinery Society of Japan, New Technology Trends for Pumps, Pamphlet", 24 March 2010, TURBOMACHINERY SOCIETY OF JAPAN, article "Brine Recirculation Pump for Seawater Desalination Plant" |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104500451A (zh) * | 2014-12-06 | 2015-04-08 | 无锡高卓流体设备有限公司 | 一种潜水泵导叶体 |
Also Published As
Publication number | Publication date |
---|---|
EP2778422A4 (en) | 2015-11-04 |
EP2778422A1 (en) | 2014-09-17 |
KR20140074999A (ko) | 2014-06-18 |
KR101598165B1 (ko) | 2016-02-26 |
JP5789487B2 (ja) | 2015-10-07 |
JP2013104308A (ja) | 2013-05-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2013069418A1 (ja) | ピットバーレル型ポンプおよびその組込み方法 | |
US20180117544A1 (en) | Gas-Liquid Dispersion Impeller Assembly With Annular-Sector-Shaped Concave Blades | |
EP2484917B1 (en) | Anti-vortex device and double-suction vertical pump provided with the anti-vortex device | |
KR101639038B1 (ko) | 풀-아웃형 입축 펌프 | |
US9022732B2 (en) | Concrete volute pump | |
US20060255482A1 (en) | Device for stirring a liquid and for injecting a gas into this liquid, suitable for shallow basins | |
JP2008175162A (ja) | ポンプ装置及びポンプゲート装置 | |
JP5909124B2 (ja) | コラム型液中ポンプの製造方法 | |
JP6453009B2 (ja) | 横軸ポンプシステム | |
RU2735978C1 (ru) | Ступень многоступенчатого лопастного насоса | |
JP5345123B2 (ja) | 立軸ポンプ | |
JP2017036717A (ja) | 渦防止装置、及び、ポンプシステム | |
CN103835987A (zh) | 低温深井泵 | |
RU2360149C2 (ru) | Супердиспергирующее колесо ступени погружного центробежного насоса для добычи нефти | |
KR102077627B1 (ko) | 고양정 수중펌프 | |
JP5486707B2 (ja) | 立軸ポンプ | |
JP5028118B2 (ja) | 排水ポンプ装置 | |
JP2011074919A (ja) | オーバーハング軸流圧縮機、反応装置、及びその方法 | |
JP6177956B2 (ja) | ウォーターポンプ装置 | |
JP2010090822A (ja) | 立軸バルブ型水車発電設備 | |
CN105805020B (zh) | 循环水泵 | |
JP5904900B2 (ja) | 水ポンプ用羽根車およびそれを備えた水中モータポンプ | |
CN107701515A (zh) | 出水角度可调轴流泵 | |
JP5563365B2 (ja) | 水中ポンプ用攪拌体及びこれを用いた水中ポンプ | |
JP2024082994A (ja) | ポンプ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12847327 Country of ref document: EP Kind code of ref document: A1 |
|
REEP | Request for entry into the european phase |
Ref document number: 2012847327 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012847327 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20147012445 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |