EP1669611A1 - Centrifugal pump - Google Patents
Centrifugal pump Download PDFInfo
- Publication number
- EP1669611A1 EP1669611A1 EP05381050A EP05381050A EP1669611A1 EP 1669611 A1 EP1669611 A1 EP 1669611A1 EP 05381050 A EP05381050 A EP 05381050A EP 05381050 A EP05381050 A EP 05381050A EP 1669611 A1 EP1669611 A1 EP 1669611A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pumps
- modular system
- flange
- wheel
- plumbing
- 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.)
- Granted
Links
- 238000009428 plumbing Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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
- 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
- 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
-
- 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
- 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
Definitions
- the object of the present invention is a simplified modular system for manufacturing centrifugal pumps, which due to its configuration, provides a greater sturdiness of the pump assembly while preventing vibrations and offsetting.
- Centrifugal pumps are well known in the state of the art in which the elements constituting the casing and containing the rotor are made of cast iron, which results in a high cost.
- a second known configuration of centrifugal pumps described in Utility Models with application numbers U286465 and U9101925 has a case constituted from stamped parts.
- the present invention relates to a simplified modular system for the construction of centrifugal pumps constituted by a body-flange in a single piece, which acts as a union to the motor casing, the wheel shaft and the part meant for impelling the pump.
- the casing is completed by the cover, to which the pump intake is welded.
- This body-flange is made of cast iron or by microfusion, whereas the cover is made by stamping, the pump intake placed in its opening.
- a finishing and polishing operation may be performed of the inner surface through which the fluid travels, ensuring the hygiene of the pump when it is used with food or pharmaceuticals.
- the body-flange Due to its inner configuration the body-flange presents a cover that allows to couple different types of mechanical closures such as spacers, springs, retainers, nuts, etc.
- the functionality of the modular system resides in its adaptability to both plumbing and industrial application pumps, where the wheel, open on the former and semi-open in the latter, is completely adjusted to the body-flange and the cover, so that their performance is greater.
- the blind nut placed on the end of the wheel shaft has an inner pressure washer and an O-ring for sealing the shaft, while in the industrial application it has a standard washer.
- an O-ring is disposed between the motor casing and the body-flange to prevent the entry of cleaning liquids in the motor.
- the simplified modular system for manufacturing centrifugal pumps provides a great versatility and applicability to both types of pump described, due to its configuration.
- Figure 1 represents a cross section of an embodiment of the invention showing the modular system in which the half-section A refers to a plumbing type centrifugal pump and the half-section B refers to an industrial type centrifugal pump.
- the present invention relates to a simplified modular system for manufacturing centrifugal pumps constituted by a body-flange (1) joined to the casing of a motor (12) and which allows passage of the shaft (13) of the open wheel (4) in sanitary application pumps and the semi-open wheel (5) in industrial application pumps, and also includes the part intended for the pump impulsion (14).
- the pump casing is completed by a cover (2), to which the pump intake (15) is welded.
- the seal of the body-flange (1) and the cover (2) is achieved by an O-ring (8), located on the peripheral seat (1.1) of the body-flange (1).
- the body-flange (1) has an inner seat (1.2) on which rests a cover-closure (3) that allows to couple different types of mechanical closures between this cover-closure (3) and the wheel (4, 5).
- the body-flange (1) and the cover (2) are joined by a clamp (6), while a blind nut (9) is inserted on the end of the shaft (13) of the wheel (4), preferably including an inner pressure washer (16) and an O-ring (17) to seal the shaft (13).
- the body-flange (1) and the cover (2) are joined by screws (7) while the blind nut (9) preferably includes a standard washer (18).
- an O-ring (10) is provided between the motor casing (12) and the body flange (1) to prevent the entry of cleaning liquids in the motor.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
- The object of the present invention is a simplified modular system for manufacturing centrifugal pumps, which due to its configuration, provides a greater sturdiness of the pump assembly while preventing vibrations and offsetting.
- In addition, the assembly of this system is very simple due to the union in a single part of the flange adjacent to the motor and the intermediate plate with an orifice to allow passage of the motor shaft, with the subsequent reduction of costs.
- Due to the configuration of the modular system, the performance of the pump increases as well as allowing its use in both plumbing and industrial pumps.
- Centrifugal pumps are well known in the state of the art in which the elements constituting the casing and containing the rotor are made of cast iron, which results in a high cost.
- A second known configuration of centrifugal pumps described in Utility Models with application numbers U286465 and U9101925 has a case constituted from stamped parts.
- In addition in the aforementioned configurations is subordinated to the shape of the intermediate plate and the distance between it and the turbine or wheel.
- All of these drawbacks are overcome by the invention described in what follows.
- The present invention relates to a simplified modular system for the construction of centrifugal pumps constituted by a body-flange in a single piece, which acts as a union to the motor casing, the wheel shaft and the part meant for impelling the pump.
- In addition, the casing is completed by the cover, to which the pump intake is welded.
- This body-flange is made of cast iron or by microfusion, whereas the cover is made by stamping, the pump intake placed in its opening.
- In addition, a finishing and polishing operation may be performed of the inner surface through which the fluid travels, ensuring the hygiene of the pump when it is used with food or pharmaceuticals.
- Due to its inner configuration the body-flange presents a cover that allows to couple different types of mechanical closures such as spacers, springs, retainers, nuts, etc.
- The functionality of the modular system resides in its adaptability to both plumbing and industrial application pumps, where the wheel, open on the former and semi-open in the latter, is completely adjusted to the body-flange and the cover, so that their performance is greater.
- In plumbing application pumps the body-flange and the cover are joined by a clamp, while in industrial application pumps they are joined by screws.
- In turn, in plumbing applications the blind nut placed on the end of the wheel shaft has an inner pressure washer and an O-ring for sealing the shaft, while in the industrial application it has a standard washer.
- When the modular system is used for application as a plumbing pump, an O-ring is disposed between the motor casing and the body-flange to prevent the entry of cleaning liquids in the motor.
- As seen in the description, the simplified modular system for manufacturing centrifugal pumps provides a great versatility and applicability to both types of pump described, due to its configuration.
- The present descriptive memory is completed by a set of drawings that illustrate the preferred example of the invention and in no way limit it.
- Figure 1 represents a cross section of an embodiment of the invention showing the modular system in which the half-section A refers to a plumbing type centrifugal pump and the half-section B refers to an industrial type centrifugal pump.
- In view of the above, the present invention relates to a simplified modular system for manufacturing centrifugal pumps constituted by a body-flange (1) joined to the casing of a motor (12) and which allows passage of the shaft (13) of the open wheel (4) in sanitary application pumps and the semi-open wheel (5) in industrial application pumps, and also includes the part intended for the pump impulsion (14).
- The pump casing is completed by a cover (2), to which the pump intake (15) is welded.
- The seal of the body-flange (1) and the cover (2) is achieved by an O-ring (8), located on the peripheral seat (1.1) of the body-flange (1).
- The body-flange (1) has an inner seat (1.2) on which rests a cover-closure (3) that allows to couple different types of mechanical closures between this cover-closure (3) and the wheel (4, 5).
- Due to the functionality of the modular system, when it is applied to plumbing pumps the body-flange (1) and the cover (2) are joined by a clamp (6), while a blind nut (9) is inserted on the end of the shaft (13) of the wheel (4), preferably including an inner pressure washer (16) and an O-ring (17) to seal the shaft (13).
- In industrial application pumps, the body-flange (1) and the cover (2) are joined by screws (7) while the blind nut (9) preferably includes a standard washer (18).
- If the modular system is used for application as a plumbing pump, an O-ring (10) is provided between the motor casing (12) and the body flange (1) to prevent the entry of cleaning liquids in the motor.
- The essence of this invention is not affected by variations in the materials, shape and size of the component elements, described in a non-limiting manner that should allow its reproduction by an expert.
Claims (8)
- Simplified modular system for manufacturing centrifugal pumps among those in which the seal between the parts conforming the casing in contact with the fluid is provided by an O-ring (8), characterised in that the pump casing is formed by a first piece, the body-flange (1), which is joined to the casing of a motor (12) allowing passage of the shaft (13) of the wheel (4, 5) and includes the part meant for the pump impulsion (14) and a second piece, the cover (2), to which the pump intake (15) is welded, wherein the body-flange (1) presents an inner seat (1.2) on which rests a cover-closure (3) that allows to couple several types of mechanical closures between said cover-closure (3) and the wheel (4, 5).
- Simplified modular system for manufacturing centrifugal pumps according to claim 1, characterised in that the body-flange (1) and the cover (2) are joined by a clamp (6) when the system is applied to plumbing pumps.
- Simplified modular system for manufacturing centrifugal pumps according to claim 1, characterised in that the body-flange (1) and the cover (2) are joined by screws (7) when the system is applied to industrial pumps.
- Simplified modular system for manufacturing centrifugal pumps according to claim 1, characterised in that a blind nut (9) is inserted in the end of the shaft (13) of the wheel (4), preferably including an inner pressure washer (16) and an O-ring (17) for sealing the shaft (13) when the system is applied to plumbing pumps.
- Simplified modular system for manufacturing centrifugal pumps according to claim 1, characterised in that a blind nut (9) is inserted in the end of the shaft (13) of the wheel (5), preferably including a standard washer (18) when the system is applied to plumbing pumps.
- Simplified modular system for manufacturing centrifugal pumps according to claim 1, characterised in that between the casing of the motor (12) and the body-flange (1) there is an O-ring (10) to prevent the entry of cleaning liquids into the motor, when the system is applied to plumbing pumps.
- Simplified modular system for manufacturing centrifugal pumps according to claim 1, characterised in that the wheel (4) is open in plumbing application pumps.
- Simplified modular system for manufacturing centrifugal pumps according to claim 1, characterised in that the wheel (5) is semi-open in industrial application pumps.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200402698A ES2263356B1 (en) | 2004-11-10 | 2004-11-10 | SIMPLIFIED MODULAR SYSTEM OF MANUFACTURE OF CENTRIFUGAL PUMPS. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1669611A1 true EP1669611A1 (en) | 2006-06-14 |
EP1669611B1 EP1669611B1 (en) | 2009-04-01 |
Family
ID=35589647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05381050A Active EP1669611B1 (en) | 2004-11-10 | 2005-11-07 | Centrifugal pump |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1669611B1 (en) |
AT (1) | ATE427431T1 (en) |
DE (1) | DE602005013632D1 (en) |
ES (2) | ES2263356B1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1972789A1 (en) * | 2007-03-23 | 2008-09-24 | IHC Holland IE B.V. | Centrifugal pump comprising a spiral shape mounting arrangement |
DE102008013473A1 (en) * | 2008-03-10 | 2009-09-17 | Wilo Ag | Pump housing with rotatable mounting flanges |
CN103147994A (en) * | 2013-01-30 | 2013-06-12 | 上海通一水泵(集团)有限公司 | Vertical single-stage fire pump |
CN107131222A (en) * | 2017-06-30 | 2017-09-05 | 沈阳透平机械股份有限公司 | A kind of coupler protective casing |
CN109826799A (en) * | 2019-02-21 | 2019-05-31 | 三联泵业股份有限公司 | A kind of energy-saving centrifugal pump |
CN113074148A (en) * | 2021-05-17 | 2021-07-06 | 台州阳春机电有限公司 | Water pump mechanical seal flushing structure |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102720705B (en) * | 2012-06-27 | 2014-07-09 | 合肥华升泵阀有限责任公司 | Rotor assembling tool for large heavy-duty horizontal type multistage centrifugal pump |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3601498A (en) * | 1969-10-23 | 1971-08-24 | Allis Chalmers Mfg Co | Centrifugal pump |
BE898542A (en) * | 1982-12-24 | 1984-04-16 | Kloeckner Humboldt Deutz Ag | Centrifugal pump. |
GB2159880A (en) * | 1984-06-04 | 1985-12-11 | Jacuzzi Europ | Centrifugal pump |
EP0376225A2 (en) * | 1988-12-26 | 1990-07-04 | Nippon Zeon Co., Ltd. | Polymeric casing for fluid machines and pumps |
US6164910A (en) * | 1998-09-22 | 2000-12-26 | Itt Manufacturing Enterprises, Inc. | Housing assembly for a fluid-working device such as a rotary pump |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2327426A1 (en) * | 1975-10-10 | 1977-05-06 | Chevalier Georges | Compact replacement pump which fits all washing machines - with wide range of mounting positions and connector orientations |
ES257344Y (en) * | 1981-04-03 | 1983-01-01 | SIMPLIFIED CENTRIFUGAL PUMP | |
ES286465Y (en) * | 1985-04-30 | 1986-10-01 | Badosa Busquets Jose Ma. | PERFECTED HOUSING FOR CENTRIFUGAL PUMPS |
ES1046823Y (en) * | 2000-07-12 | 2001-07-01 | Busquets Jose Maria Badosa | BEARING FOR CENTRIFUGAL PUMPS, SEMI-OPEN STAR TYPE AND WITH DEFLECTOR DISC. |
-
2004
- 2004-11-10 ES ES200402698A patent/ES2263356B1/en active Active
-
2005
- 2005-11-07 ES ES05381050T patent/ES2322813T3/en active Active
- 2005-11-07 DE DE602005013632T patent/DE602005013632D1/en not_active Expired - Fee Related
- 2005-11-07 EP EP05381050A patent/EP1669611B1/en active Active
- 2005-11-07 AT AT05381050T patent/ATE427431T1/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3601498A (en) * | 1969-10-23 | 1971-08-24 | Allis Chalmers Mfg Co | Centrifugal pump |
BE898542A (en) * | 1982-12-24 | 1984-04-16 | Kloeckner Humboldt Deutz Ag | Centrifugal pump. |
GB2159880A (en) * | 1984-06-04 | 1985-12-11 | Jacuzzi Europ | Centrifugal pump |
EP0376225A2 (en) * | 1988-12-26 | 1990-07-04 | Nippon Zeon Co., Ltd. | Polymeric casing for fluid machines and pumps |
US6164910A (en) * | 1998-09-22 | 2000-12-26 | Itt Manufacturing Enterprises, Inc. | Housing assembly for a fluid-working device such as a rotary pump |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1972789A1 (en) * | 2007-03-23 | 2008-09-24 | IHC Holland IE B.V. | Centrifugal pump comprising a spiral shape mounting arrangement |
CN101275587B (en) * | 2007-03-23 | 2014-08-20 | Ihc荷兰Ie公司 | Centrifugal pump comprising a spiral shape mounting arrangement and composite structure comprising centrifugal pump |
DE102008013473A1 (en) * | 2008-03-10 | 2009-09-17 | Wilo Ag | Pump housing with rotatable mounting flanges |
CN103147994A (en) * | 2013-01-30 | 2013-06-12 | 上海通一水泵(集团)有限公司 | Vertical single-stage fire pump |
CN107131222A (en) * | 2017-06-30 | 2017-09-05 | 沈阳透平机械股份有限公司 | A kind of coupler protective casing |
CN109826799A (en) * | 2019-02-21 | 2019-05-31 | 三联泵业股份有限公司 | A kind of energy-saving centrifugal pump |
CN113074148A (en) * | 2021-05-17 | 2021-07-06 | 台州阳春机电有限公司 | Water pump mechanical seal flushing structure |
Also Published As
Publication number | Publication date |
---|---|
ATE427431T1 (en) | 2009-04-15 |
ES2322813T3 (en) | 2009-06-29 |
DE602005013632D1 (en) | 2009-05-14 |
ES2263356A1 (en) | 2006-12-01 |
EP1669611B1 (en) | 2009-04-01 |
ES2263356B1 (en) | 2007-11-16 |
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