EP1813819A2 - Pompe centrifuge - Google Patents
Pompe centrifuge Download PDFInfo
- Publication number
- EP1813819A2 EP1813819A2 EP07000756A EP07000756A EP1813819A2 EP 1813819 A2 EP1813819 A2 EP 1813819A2 EP 07000756 A EP07000756 A EP 07000756A EP 07000756 A EP07000756 A EP 07000756A EP 1813819 A2 EP1813819 A2 EP 1813819A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- impeller
- centrifugal pump
- shaft
- sealing disc
- sealing
- 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
- 238000007789 sealing Methods 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract 2
- 238000001816 cooling Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002245 particle Substances 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
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
- F04D29/128—Shaft sealings using sealing-rings especially adapted for liquid pumps with special means for adducting cooling or sealing 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
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
Definitions
- the invention relates to a centrifugal pump with an impeller, which sits on one end of a motor-driven shaft, wherein a mechanical seal on the side facing away from the impeller inlet side of the impeller surrounds the shaft.
- the object of the invention is to improve a centrifugal pump of the type mentioned so that optimal cooling and lubrication is ensured and in this case the solids, in particular suspended parts are safely dissipated.
- the partial flow through the seal chamber dissipates heat and solids, or suspended particles from the seal chamber, and also ensures optimum lubrication of the mechanical seal. It is created with regard to cooling, rinsing and cleaning an optimal environment for the mechanical seal.
- the passage channel is formed by at least one longitudinal recess, in particular a longitudinal groove, in the outer jacket of the shaft. It is also advantageous if the passage between the shaft and the central opening of the sealing disc is arranged.
- the pressure side of the pump can in particular be sealed to the sealing space through the sealing disk, wherein the partition between the pressure side, in particular the pressure chamber and the seal chamber has a particular annular opening which is closed in particular closed by a region of the sealing disc.
- the pressure of the pump pressure chamber rests against the sealing disk, on the side facing the impeller, so that the sealing disk presses the impeller in a direction over the shaft, which counteracts the pull of the impeller caused by the suction of the liquid into the impeller he follows.
- the sealing disk on the side facing away from the impeller has at least one groove which leads from the outer edge of the disk to the passage of the sealing disk.
- the sealing disc has a particular annular contact surface for the mechanical seal.
- the housing 1 of a centrifugal pump 2 forms a pump chamber 3, in which an impeller 4 is mounted, which is fixed to one end of a shaft 5, which is driven by an electric motor, not shown.
- the impeller 4 has a coaxial inlet 6, with which the impeller from an inlet channel 7 sucks the liquid, which is connected to a suction nozzle 8.
- the sucked from the inlet 6 liquid is pushed out through impeller blade 9 from the impeller circumference, in a pressure chamber 10 and from there via a pressure channel to a discharge nozzle 11.
- a mechanical seal 12 On the side facing away from the inlet 6 of the impeller 4 sits on the shaft 5, a mechanical seal 12, the surrounded by a mechanical seal space 13 annular.
- the mechanical seal chamber 13 is connected to the pressure chamber 10 via a channel 22, which starts from the pressure chamber 10 and opens into the space 13.
- a circular sealing disc 14 coaxially mounted on the shaft 5 rotatably, so that it rotates with the shaft 5.
- the sealing disc 14 is located on one side on the back of the impeller, or on a coaxially protruding sleeve-shaped socket 15 of the impeller 4, and with its other side to a coaxial annular shoulder of the shaft 5, so that they are axially immovable relative to the shaft 5 stuck on this.
- the sealing disc 14 has a central opening 16, with which it sits positively on the shaft 5.
- this opening 16 has at least one passage opening which allows the liquid to pass from the mechanical seal chamber 13 via a longitudinal channel 17, in particular a longitudinal groove, to the inlet 6 or the inlet opening of the rotor 4.
- This flow leading from the mechanical seal chamber 13 to the inlet 6 is further improved by the fact that the sealing disk has at least one groove 18 on the side facing away from the rotor, which groove leads from the outer edge of the sealing disk 14 to the passage of the sealing disk.
- two semicircular grooves 18 are arranged near the edge of the disk, with their end in each case merging in a radial region which leads to the passage 19.
- the sealing disc 14 has an inner annular abutment surface 20 in which the mechanical seal 12 abuts and which is interrupted only by the one or more end portions 18a of the grooves 18 of the sealing washer 14, these Nutenend Schemee 18a are arranged approximately radially to the outer ring or partially annular groove area to connect with the opening 16 and the longitudinal channel 17.
- the sliding ring sealing space 13 is connected to the pressure chamber 10 via an annular coaxial opening 19 when the sealing disc 14 is missing.
- the sealing disc 14 closes this opening 19, so that the pressure in the pressure chamber 10 rests against the impeller 4 facing side of the sealing disc 14.
- the sealing disk 14 is pressed by the pressure in the pressure chamber 10 in the direction of the electric motor and thus exerted a pressure on the impeller 4 via the shaft 5 in the same direction. This pressure is opposite to the force that generates the impeller 4 during the suction of the liquid.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Reciprocating Pumps (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006004266A DE102006004266A1 (de) | 2006-01-31 | 2006-01-31 | Kreiselpumpe |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1813819A2 true EP1813819A2 (fr) | 2007-08-01 |
EP1813819A3 EP1813819A3 (fr) | 2008-02-27 |
EP1813819B1 EP1813819B1 (fr) | 2011-04-27 |
Family
ID=38024250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07000756A Active EP1813819B1 (fr) | 2006-01-31 | 2007-01-16 | Pompe centrifuge |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1813819B1 (fr) |
AT (1) | ATE507395T1 (fr) |
DE (2) | DE102006004266A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113202809A (zh) * | 2021-05-22 | 2021-08-03 | 中国计量大学 | 一种不会对外泄漏泵内输送液体分子的全密封型水泵的结构 |
CN113236599A (zh) * | 2021-05-22 | 2021-08-10 | 中国计量大学 | 不外泄泵内被输送液体分子的且扬程全由电机决定的化工泵结构 |
CN113357186A (zh) * | 2021-05-22 | 2021-09-07 | 中国计量大学 | 一种全密封型水泵的结构 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19519799A1 (de) | 1994-05-31 | 1995-12-07 | Ingersoll Dresser Pump Co | Kreiselpumpe |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1120231A (en) * | 1964-07-08 | 1968-07-17 | Worthington Simpson | Rotary pumps |
DE2914652A1 (de) * | 1979-04-11 | 1980-10-30 | Kloeckner Humboldt Deutz Ag | Verstellbares mikrofilmkartenlesegeraet |
DE3432662C2 (de) * | 1984-09-05 | 1986-10-16 | Tanabe Machinery Co., Ltd., Tokio/Tokyo | Vorrichtung zum Erfassen eines Sollmaßes eines Schachtelzuschnittes für eine Schachtelherstellungsmaschine |
DE3438662C2 (de) * | 1984-10-22 | 1997-01-30 | Sihi Gmbh & Co Kg | Kreiselpumpe für heiße Medien |
DE8601166U1 (de) * | 1986-01-18 | 1986-02-27 | Sihi Gmbh & Co Kg, 2210 Itzehoe | Pumpe zur Förderung von Heißwasser |
DE8627766U1 (de) * | 1986-10-17 | 1988-02-11 | Sihi Gmbh & Co Kg, 2210 Itzehoe | Kreiselpumpe |
DE3825799A1 (de) * | 1988-07-29 | 1990-02-01 | Messer Griesheim Gmbh | Kreiselpumpe |
DE3914652A1 (de) * | 1989-05-03 | 1990-11-08 | Sihi Gmbh & Co Kg | Kreiselpumpe |
CA2015777C (fr) * | 1990-04-30 | 1993-10-12 | Lynn P. Tessier | Pompe centrifuge |
-
2006
- 2006-01-31 DE DE102006004266A patent/DE102006004266A1/de not_active Withdrawn
-
2007
- 2007-01-16 DE DE502007007033T patent/DE502007007033D1/de active Active
- 2007-01-16 AT AT07000756T patent/ATE507395T1/de active
- 2007-01-16 EP EP07000756A patent/EP1813819B1/fr active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19519799A1 (de) | 1994-05-31 | 1995-12-07 | Ingersoll Dresser Pump Co | Kreiselpumpe |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113202809A (zh) * | 2021-05-22 | 2021-08-03 | 中国计量大学 | 一种不会对外泄漏泵内输送液体分子的全密封型水泵的结构 |
CN113236599A (zh) * | 2021-05-22 | 2021-08-10 | 中国计量大学 | 不外泄泵内被输送液体分子的且扬程全由电机决定的化工泵结构 |
CN113357186A (zh) * | 2021-05-22 | 2021-09-07 | 中国计量大学 | 一种全密封型水泵的结构 |
Also Published As
Publication number | Publication date |
---|---|
EP1813819A3 (fr) | 2008-02-27 |
DE502007007033D1 (de) | 2011-06-09 |
ATE507395T1 (de) | 2011-05-15 |
DE102006004266A1 (de) | 2007-08-02 |
EP1813819B1 (fr) | 2011-04-27 |
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