CA3036362A1 - Single-stage centrifugal pumping unit - Google Patents
Single-stage centrifugal pumping unit Download PDFInfo
- Publication number
- CA3036362A1 CA3036362A1 CA3036362A CA3036362A CA3036362A1 CA 3036362 A1 CA3036362 A1 CA 3036362A1 CA 3036362 A CA3036362 A CA 3036362A CA 3036362 A CA3036362 A CA 3036362A CA 3036362 A1 CA3036362 A1 CA 3036362A1
- Authority
- CA
- Canada
- Prior art keywords
- volute
- pump
- impeller
- housing
- pumping unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/006—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps double suction pumps
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
-
- 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
-
- 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
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2238—Special flow patterns
-
- 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
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/61—Assembly methods using limited numbers of standard modules which can be adapted by machining
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A single-stage centrifugal pumping unit comprises a double entry pump with a housing, which consists of a base and a cover, manifolds, a rotor, and a volute. The volute is configured in the form of a separate, independent component. Parts of the outside surface thereof, which are intended to be accommodated in cradles provided for this purpose in the cover and the housing, correspond to the shape of the surfaces of said cradles. An impeller and the volute are replaceable as a pair. The parameters of the impeller and the volute in each pair are calculated to provide maximum efficiency while ensuring the requisite feed and pressure. The invention is directed toward providing a pumping unit which demonstrates peak efficiency in non-nominal modes while having a simplified design and being universal in nature.
Description
SINGLE-STAGE CENTRIFUGAL PUMPING UNIT
TECHNICAL FIELD
The invention relates to mechanical engineering, namely to pumping installations designed for pumping water, water solutions, as well as oil, oil products and the like through the main, process and auxiliary pipelines.
BACKGROUND ART
From the catalog "Centrifugal oil pumps for main pipelines", edited by V. A.
Golovin, M., CINTIhimneftemash, 1989, p. 5, have been known centrifugal horizontal single-stage HM type pumps designed for pumping oil through main pipelines comprising a housing with a volute, and a double entry impeller disposed in the housing. Using the volute therein is directed to reducing radial forces acting on a rotor, and thus reducing vibration and improving pump reliability. However, when operating such a pump at feed rates below nominal, pressure pulsations, pump vibration are increased, which leads to substantial reduction in its efficiency and reliability. These disadvantages of the known pumps are due to their design involving use of only one volute, designed only for nominal mode, which results in loss of energy when it interacts with an impeller, which is forced to work in a different mode, i.e., at feed rates above or below nominal.
There has been known using replaceable impellers designed for corresponding reduced or increased feeding in centrifugal pumps. However despite the fact that replacement of impellers causes some change in the pattern of fluid flow and insignificant increase in pump efficiency in respective non-nominal modes, and some increase in the reliability of its operation as compared to the operation of the impeller pump in nominal mode, this measure is insufficient because the design of the pump also provides for using only one volute designed only for nominal mode, which results in loss of energy when it interacts with the impeller designed for non-nominal mode. Energy loss in this case leads to additional loss of efficiency of up to 8% with respect to optimal combination of impeller and volute.
Patent RU 57393 Ul discloses a centrifugal pump with a double entry impeller comprising a volute formed by cavities in a cover and a housing, and a replaceable guide apparatus, for which four embodiments are provided. It is noted that use of the guide apparatus in a replaceable unit with the double entry impeller provides maximum efficiency within 0,3 Q nom ¨ 1,25 Q nom feed range while ensuring the requisite pressure, minimum radial forces and vibrations, since the predetermined parameters calculated for this unit provide optimum flow section. However, inlet and outlet described in each embodiment are designed for maximum feed, the inflow setting of each impeller correspond to the outflow setting, and the outflow setting of each guide apparatus correspond to setting of the same volute, which is provided in the form of cavities in the cover and the housing.
This results in the same disadvantages as described above due to use of the same volute, because fluid energy conversion occurs along the entire length of the volute, which in its turn is calculated for maximum flow rather than for an optimum one. Even in case of optimal interaction of the impeller and the guide apparatus in such a pump energy losses are inevitable, since after the fluid passes through the impeller and the guide apparatus, it enters the outlet, calculated for only one mode. Moreover, if replacement of already operating pump installed on the line with a pump having other design characteristics is necessary, dismantling of the pipeline will be also necessary, which is a laborious operation requiring investing additional funds to the price of a new pump, while the need to use guide apparatuses will complicate a pump design, increase cost of its manufacture, and increase adverse noise impact on the environment.
SUMMARY
The present invention has an object of providing a single-stage centrifugal pumping unit which demonstrates peak efficiency in non-nominal modes while having a simplified design and being universal in nature.
To achieve the object, a single-stage centrifugal pumping unit comprises a centrifugal single-stage double entry pump, an electric drive motor, a coupling, connecting their shafts, a support frame for mounting the pump housing and the electric motor thereon, a housing, which consists of a base and a cover, inlet and outlet manifolds, a rotor with an impeller, the rotor being installed in support bearings, and a volute. According to the invention, the volute is configured in the form of a separate, independent component, and parts of the outside surface thereof, which are intended to be .
accommodated in cradles provided for this purpose in the cover and the housing, correspond to the shape of the surfaces of said cradles, the impeller and the volute are replaceable as a pair, the parameters of the impeller and the volute in each pair are calculated to provide maximum efficiency (peak efficiency) while ensuring the requisite feed and pressure. Preferably, the replaceable volutes are made as an integrated cast component and comprise a baffle separating the fluid flow during the movement.
TECHNICAL FIELD
The invention relates to mechanical engineering, namely to pumping installations designed for pumping water, water solutions, as well as oil, oil products and the like through the main, process and auxiliary pipelines.
BACKGROUND ART
From the catalog "Centrifugal oil pumps for main pipelines", edited by V. A.
Golovin, M., CINTIhimneftemash, 1989, p. 5, have been known centrifugal horizontal single-stage HM type pumps designed for pumping oil through main pipelines comprising a housing with a volute, and a double entry impeller disposed in the housing. Using the volute therein is directed to reducing radial forces acting on a rotor, and thus reducing vibration and improving pump reliability. However, when operating such a pump at feed rates below nominal, pressure pulsations, pump vibration are increased, which leads to substantial reduction in its efficiency and reliability. These disadvantages of the known pumps are due to their design involving use of only one volute, designed only for nominal mode, which results in loss of energy when it interacts with an impeller, which is forced to work in a different mode, i.e., at feed rates above or below nominal.
There has been known using replaceable impellers designed for corresponding reduced or increased feeding in centrifugal pumps. However despite the fact that replacement of impellers causes some change in the pattern of fluid flow and insignificant increase in pump efficiency in respective non-nominal modes, and some increase in the reliability of its operation as compared to the operation of the impeller pump in nominal mode, this measure is insufficient because the design of the pump also provides for using only one volute designed only for nominal mode, which results in loss of energy when it interacts with the impeller designed for non-nominal mode. Energy loss in this case leads to additional loss of efficiency of up to 8% with respect to optimal combination of impeller and volute.
Patent RU 57393 Ul discloses a centrifugal pump with a double entry impeller comprising a volute formed by cavities in a cover and a housing, and a replaceable guide apparatus, for which four embodiments are provided. It is noted that use of the guide apparatus in a replaceable unit with the double entry impeller provides maximum efficiency within 0,3 Q nom ¨ 1,25 Q nom feed range while ensuring the requisite pressure, minimum radial forces and vibrations, since the predetermined parameters calculated for this unit provide optimum flow section. However, inlet and outlet described in each embodiment are designed for maximum feed, the inflow setting of each impeller correspond to the outflow setting, and the outflow setting of each guide apparatus correspond to setting of the same volute, which is provided in the form of cavities in the cover and the housing.
This results in the same disadvantages as described above due to use of the same volute, because fluid energy conversion occurs along the entire length of the volute, which in its turn is calculated for maximum flow rather than for an optimum one. Even in case of optimal interaction of the impeller and the guide apparatus in such a pump energy losses are inevitable, since after the fluid passes through the impeller and the guide apparatus, it enters the outlet, calculated for only one mode. Moreover, if replacement of already operating pump installed on the line with a pump having other design characteristics is necessary, dismantling of the pipeline will be also necessary, which is a laborious operation requiring investing additional funds to the price of a new pump, while the need to use guide apparatuses will complicate a pump design, increase cost of its manufacture, and increase adverse noise impact on the environment.
SUMMARY
The present invention has an object of providing a single-stage centrifugal pumping unit which demonstrates peak efficiency in non-nominal modes while having a simplified design and being universal in nature.
To achieve the object, a single-stage centrifugal pumping unit comprises a centrifugal single-stage double entry pump, an electric drive motor, a coupling, connecting their shafts, a support frame for mounting the pump housing and the electric motor thereon, a housing, which consists of a base and a cover, inlet and outlet manifolds, a rotor with an impeller, the rotor being installed in support bearings, and a volute. According to the invention, the volute is configured in the form of a separate, independent component, and parts of the outside surface thereof, which are intended to be .
accommodated in cradles provided for this purpose in the cover and the housing, correspond to the shape of the surfaces of said cradles, the impeller and the volute are replaceable as a pair, the parameters of the impeller and the volute in each pair are calculated to provide maximum efficiency (peak efficiency) while ensuring the requisite feed and pressure. Preferably, the replaceable volutes are made as an integrated cast component and comprise a baffle separating the fluid flow during the movement.
2 BRIEF DESCRIPTION OF THE DRAWINGS
The invention is illustrated by the following drawings.
Fig. 1 is a general view illustrating a single-stage centrifugal pumping unit;
Fig. 2 is a vertical plane cross-sectional view of the pump along the pipeline axis; Fig.
The invention is illustrated by the following drawings.
Fig. 1 is a general view illustrating a single-stage centrifugal pumping unit;
Fig. 2 is a vertical plane cross-sectional view of the pump along the pipeline axis; Fig.
3 is a vertical plane cross-sectional view illustrating schematic arrangement of a cover, a replaceable flow part and a pump housing along the pipeline axis; Fig. 4 illustrates embodiments of replaceable volutes with constant outer connecting profile and various internal hydrodynamic profile designed for optimal operation and maximum efficiency.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
To ensure comprehensive understanding of the essence of the present invention, its numerous specific characteristics will be described hereinafter.
According to the present invention, a single-stage centrifugal pumping unit comprises an electric drive motor 2, a centrifugal single-stage double entry pump 1 (hereinafter, the pump), a coupling 3, connecting their shafts, a pump housing 17, which consists of a base 6 and a cover 7, an inlet manifold 8 and an outlet manifold 9, a rotor 10 with an impeller 11, the rotor being installed in support bearings 12, a volute 13, and a support frame 5 for mounting the pump housing 17 and the electric motor 2 thereon. As shown in Fig. 3, the volute 13 is configured in the form of a separate, independent component, and parts of the outside surface thereof, which are intended to be accommodated in cradles 14 and 15 provided for this purpose in the housing 6 and the cover 7, correspond to the shape of the surfaces of said cradles 14 and 15. The impeller 11 and the volute 13 are replaceable as a pair, the parameters of the impeller 11 and the volute 13 in each pair are calculated to provide maximum efficiency while ensuring the requisite feed and pressure.
Preferably, the replaceable volutes 13 are made casted, and they may comprise a baffle 15 for separation of the fluid flow during the movement.
The pump works in the same way as other known centrifugal single-stage double entry pumps. Upon rotation of the shaft 4 of the pump, pump medium through the inlet manifold 8 is supplied to the impeller 11, interaction of blades of which with the flow of the pumped medium causes conversion of the drive energy to the energy of flow. From the impeller 11, the pumped medium enters the volute, where the flow is smoothed out, and further through the outlet manifold it passes to the pipeline.
Possibility of using a pair of impeller and volute implemented in the pump design, which is designed and manufactured to be operated in optimal mode, minimizes the radial forces acting on the rotor, which accordingly contributes to operation of the pump with low vibrations and increases its reliability.
The advantage of the filed invention relating to the possibility of using the same housing for pumps with different characteristics is achieved by that a pump being a base member is a complicated casting of carbon steel, or stainless steel, actually consisting of a housing and a cover.
Therefore, in the event of change of the pump operating conditions (reducing pressure on already existing line, or changing the flow through the already existing line) it is not necessary to use the already operating pump in ineffective way, or dismantle it and install a new one designed for new conditions. Just install a new pair of impeller and volute designed for new operating environment in already existing housing, and you will get a pump with new relative calculated characteristics. Thus, there is a significant saving of money due to no need to dismantle the old pump and manufacture a new pump in a new housing. Of particular importance is solution of providing a pump with new characteristics on the basis of the old one, as there is no need to dismantle the pipeline, on which the old pump has been installed and operated.
In addition, possibility of replacing impellers in a pump to use them in optimal mode will extend the service life of the pump itself, as impellers are rapidly wearing parts and can be manufactured from costly high wear resistant materials, such as steel 20X13, 12X 1 8H12MZTL or similar steel and materials.
The pump housing is horizontally split, which provides for possibility to dissect, inspect, repair, and replace the parts of the pump and the entire rotor without dismantling the pipes, since the pump inlet and suction manifolds are connected to the bottom of the pump housing.
INDUSTRIAL APPLICABILITY
The present invention in proposed combination of features can be used to provide a single-stage centrifugal pumping unit which demonstrates peak efficiency in non-nominal modes while having a simplified design, and being universal in nature, durable and easy to operate.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
To ensure comprehensive understanding of the essence of the present invention, its numerous specific characteristics will be described hereinafter.
According to the present invention, a single-stage centrifugal pumping unit comprises an electric drive motor 2, a centrifugal single-stage double entry pump 1 (hereinafter, the pump), a coupling 3, connecting their shafts, a pump housing 17, which consists of a base 6 and a cover 7, an inlet manifold 8 and an outlet manifold 9, a rotor 10 with an impeller 11, the rotor being installed in support bearings 12, a volute 13, and a support frame 5 for mounting the pump housing 17 and the electric motor 2 thereon. As shown in Fig. 3, the volute 13 is configured in the form of a separate, independent component, and parts of the outside surface thereof, which are intended to be accommodated in cradles 14 and 15 provided for this purpose in the housing 6 and the cover 7, correspond to the shape of the surfaces of said cradles 14 and 15. The impeller 11 and the volute 13 are replaceable as a pair, the parameters of the impeller 11 and the volute 13 in each pair are calculated to provide maximum efficiency while ensuring the requisite feed and pressure.
Preferably, the replaceable volutes 13 are made casted, and they may comprise a baffle 15 for separation of the fluid flow during the movement.
The pump works in the same way as other known centrifugal single-stage double entry pumps. Upon rotation of the shaft 4 of the pump, pump medium through the inlet manifold 8 is supplied to the impeller 11, interaction of blades of which with the flow of the pumped medium causes conversion of the drive energy to the energy of flow. From the impeller 11, the pumped medium enters the volute, where the flow is smoothed out, and further through the outlet manifold it passes to the pipeline.
Possibility of using a pair of impeller and volute implemented in the pump design, which is designed and manufactured to be operated in optimal mode, minimizes the radial forces acting on the rotor, which accordingly contributes to operation of the pump with low vibrations and increases its reliability.
The advantage of the filed invention relating to the possibility of using the same housing for pumps with different characteristics is achieved by that a pump being a base member is a complicated casting of carbon steel, or stainless steel, actually consisting of a housing and a cover.
Therefore, in the event of change of the pump operating conditions (reducing pressure on already existing line, or changing the flow through the already existing line) it is not necessary to use the already operating pump in ineffective way, or dismantle it and install a new one designed for new conditions. Just install a new pair of impeller and volute designed for new operating environment in already existing housing, and you will get a pump with new relative calculated characteristics. Thus, there is a significant saving of money due to no need to dismantle the old pump and manufacture a new pump in a new housing. Of particular importance is solution of providing a pump with new characteristics on the basis of the old one, as there is no need to dismantle the pipeline, on which the old pump has been installed and operated.
In addition, possibility of replacing impellers in a pump to use them in optimal mode will extend the service life of the pump itself, as impellers are rapidly wearing parts and can be manufactured from costly high wear resistant materials, such as steel 20X13, 12X 1 8H12MZTL or similar steel and materials.
The pump housing is horizontally split, which provides for possibility to dissect, inspect, repair, and replace the parts of the pump and the entire rotor without dismantling the pipes, since the pump inlet and suction manifolds are connected to the bottom of the pump housing.
INDUSTRIAL APPLICABILITY
The present invention in proposed combination of features can be used to provide a single-stage centrifugal pumping unit which demonstrates peak efficiency in non-nominal modes while having a simplified design, and being universal in nature, durable and easy to operate.
4
Claims (2)
1. A single-stage centrifugal pumping unit comprising a centrifugal single-stage double entry pump, an electric drive motor, a coupling, connecting their shafts, the said pump comprising a housing, which consists of a base and a cover, manifolds, a rotor with an impeller mounted thereon, the rotor being installed in support bearings, a volute, a support frame for mounting the pump housing and the electric motor thereon, wherein the volute is configured in the form of a separate, independent component, and parts of the outside surface thereof, which are intended to be accommodated in cradles provided for this purpose in the cover and the housing of the pump, correspond to the shape of the surfaces of said cradles, the impeller and the volute are replaceable as a pair, the parameters of the impeller and the volute in each pair are calculated to provide maximum efficiency while ensuring the requisite feed and pressure.
2. A single-stage centrifugal pumping unit according to claim 1, wherein the replaceable volutes are made as an integrated cast component and comprise a baffle separating the fluid flow during the movement.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2016128485A RU2616328C1 (en) | 2016-07-13 | 2016-07-13 | Single-gear centrifugal pumping unit |
| RU2016128485 | 2016-07-13 | ||
| PCT/RU2017/000500 WO2018013010A1 (en) | 2016-07-13 | 2017-07-07 | Single-stage centrifugal pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3036362A1 true CA3036362A1 (en) | 2018-01-18 |
Family
ID=58643010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3036362A Abandoned CA3036362A1 (en) | 2016-07-13 | 2017-07-07 | Single-stage centrifugal pumping unit |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US20190242401A1 (en) |
| EP (1) | EP3486500A4 (en) |
| JP (1) | JP6810240B2 (en) |
| AU (2) | AU2017295552A1 (en) |
| BR (1) | BR112019000595A2 (en) |
| CA (1) | CA3036362A1 (en) |
| CL (1) | CL2019000088A1 (en) |
| EA (1) | EA035529B1 (en) |
| MX (1) | MX2019000518A (en) |
| NZ (1) | NZ750655A (en) |
| RU (1) | RU2616328C1 (en) |
| WO (1) | WO2018013010A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU175617U1 (en) * | 2017-05-03 | 2017-12-12 | Акционерное общество (АО) "Научно-исследовательский институт "Лопастных машин" ("НИИ ЛМ") | PUMP BODY WITH CONNECTOR IN THE PLANE OF THE PARALLEL ROTOR AXLE |
| RU2672239C1 (en) * | 2017-09-01 | 2018-11-12 | Акционерное общество "ГМС Ливгидромаш" | Centrifugal single-stage pump |
| RU185455U1 (en) * | 2018-06-14 | 2018-12-05 | Публичное акционерное общество "Транснефть" (ПАО "Транснефть") | MAIN OIL PUMP WITH SINGLE-TURN DISCHARGE AND GUIDE DEVICE |
| RU195473U9 (en) * | 2018-08-17 | 2020-03-20 | Общество с ограниченной ответственностью "Нефтекамский машиностроительный завод" (ООО "НКМЗ") | Vertical centrifugal pump unit with replaceable flow parts |
| RU2713309C1 (en) * | 2019-03-27 | 2020-02-04 | Общество С Ограниченной Ответственностью "Нефтекамский Машиностроительный Завод" | Vertical single-stage centrifugal pump |
| RU193781U1 (en) * | 2019-04-02 | 2019-11-14 | Публичное акционерное общество "Транснефть" (ПАО "Транснефть") | Double Stage Single Stage Centrifugal Pump |
| RU206998U1 (en) * | 2021-03-09 | 2021-10-06 | Акционерное общество (АО) "Турбонасос" | CENTRIFUGAL PUMP HOUSING |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2955540A (en) * | 1957-05-27 | 1960-10-11 | Worthington Corp | Twin volute pump |
| US4786230A (en) * | 1984-03-28 | 1988-11-22 | Thut Bruno H | Dual volute molten metal pump and selective outlet discriminating means |
| EP1766235B1 (en) * | 2004-07-13 | 2017-04-19 | Energy Recovery, Inc. | Hydraulic turbocharger |
| GB0419984D0 (en) * | 2004-09-09 | 2004-10-13 | Weir Pumps Ltd | Pump assembly |
| RU57393U1 (en) * | 2006-04-17 | 2006-10-10 | Открытое акционерное общество "Научно-исследовательский и проектно-конструкторский институт атомного и энергетического насосостроения" (ОАО "ВНИИАЭН") | CENTRIFUGAL PUMP WITH TWO-SIDED INPUT WHEEL |
| EP2607703B1 (en) * | 2011-12-22 | 2014-06-18 | Grundfos Holding A/S | Centrifugal pump |
| CN102808773B (en) * | 2012-08-22 | 2015-03-25 | 合肥工业大学 | Pump with replaceable assembled liner |
| CN203978852U (en) * | 2014-05-28 | 2014-12-03 | 姜堰市德华船用泵业制造有限公司 | Interchangeable scroll casing type Marine Self-priming Centrifugal Pump |
-
2016
- 2016-07-13 RU RU2016128485A patent/RU2616328C1/en active IP Right Revival
-
2017
- 2017-07-07 MX MX2019000518A patent/MX2019000518A/en unknown
- 2017-07-07 JP JP2019501616A patent/JP6810240B2/en active Active
- 2017-07-07 US US16/317,562 patent/US20190242401A1/en not_active Abandoned
- 2017-07-07 AU AU2017295552A patent/AU2017295552A1/en not_active Abandoned
- 2017-07-07 NZ NZ750655A patent/NZ750655A/en not_active IP Right Cessation
- 2017-07-07 WO PCT/RU2017/000500 patent/WO2018013010A1/en unknown
- 2017-07-07 EP EP17828042.6A patent/EP3486500A4/en not_active Withdrawn
- 2017-07-07 CA CA3036362A patent/CA3036362A1/en not_active Abandoned
- 2017-07-07 BR BR112019000595-1A patent/BR112019000595A2/en not_active IP Right Cessation
- 2017-07-07 EA EA201900061A patent/EA035529B1/en active IP Right Revival
-
2019
- 2019-01-11 CL CL2019000088A patent/CL2019000088A1/en unknown
-
2020
- 2020-11-20 AU AU2020273342A patent/AU2020273342A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP3486500A1 (en) | 2019-05-22 |
| EP3486500A4 (en) | 2020-03-11 |
| US20190242401A1 (en) | 2019-08-08 |
| EA035529B1 (en) | 2020-06-30 |
| NZ750655A (en) | 2020-06-26 |
| MX2019000518A (en) | 2019-08-16 |
| JP2019521282A (en) | 2019-07-25 |
| CL2019000088A1 (en) | 2019-08-30 |
| WO2018013010A1 (en) | 2018-01-18 |
| RU2616328C1 (en) | 2017-04-14 |
| EA201900061A1 (en) | 2019-06-28 |
| AU2017295552A1 (en) | 2019-03-07 |
| JP6810240B2 (en) | 2021-01-06 |
| BR112019000595A2 (en) | 2019-04-24 |
| AU2020273342A1 (en) | 2020-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20181227 |
|
| FZDE | Discontinued |
Effective date: 20210831 |
|
| FZDE | Discontinued |
Effective date: 20210831 |