PL397294A1 - Multistage sealing using a magnetic fluid - Google Patents

Multistage sealing using a magnetic fluid

Info

Publication number
PL397294A1
PL397294A1 PL397294A PL39729411A PL397294A1 PL 397294 A1 PL397294 A1 PL 397294A1 PL 397294 A PL397294 A PL 397294A PL 39729411 A PL39729411 A PL 39729411A PL 397294 A1 PL397294 A1 PL 397294A1
Authority
PL
Poland
Prior art keywords
pole pieces
permanent magnet
cylindrical surfaces
housing
shaft
Prior art date
Application number
PL397294A
Other languages
Polish (pl)
Other versions
PL221563B1 (en
Inventor
Wlodzimierz Ochonski
Wojciech Horak
Original Assignee
Akademia Górniczo-Hutnicza im. Stanislawa Staszica w Krakowie
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Akademia Górniczo-Hutnicza im. Stanislawa Staszica w Krakowie filed Critical Akademia Górniczo-Hutnicza im. Stanislawa Staszica w Krakowie
Priority to PL397294A priority Critical patent/PL221563B1/en
Publication of PL397294A1 publication Critical patent/PL397294A1/en
Publication of PL221563B1 publication Critical patent/PL221563B1/en

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  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

Wielostopniowe uszczelnienie z ciecza magnetyczna charakteryzuje sie tym, ze w obudowie (2) uszczelnienia umieszczone sa nabiegunniki nieruchome (3) w postaci stopniowanych tulejek przedzielonych magnesem trwalym (5), a na wale (1) osadzone sa nabiegunniki ruchome (4) równiez w postaci stopniowanych tulejek przedzielonych magnesem trwalym (6), przy czym wystepy uszczelniajace wykonane sa na wewnetrznych powierzchniach walcowych nabiegunników nieruchomych (3) lub na zewnetrznych powierzchniach walcowych nabiegunników ruchomych (4). Magnesy trwale (5 i 6) umieszczone w obudowie (2) i na wale (1) ustawione sa wzgledem siebie w ten sposób, ze magnes trwaly (5) jest w ukladzie biegunów N-S, a magnes (6) - w ukladzie biegunów S-N lub odwrotnie. Ciecz magnetyczna (7) umieszczona jest w pierscieniowych szczelinach utworzonych pomiedzy wystepami uszczelniajacymi nabiegunników ruchomych (4), a gladkimi powierzchniami walcowymi nabiegunników nieruchomych (3) lub w szczelinach pomiedzy wystepami uszczelniajacymi nabiegunników nieruchomych (3), a gladkimi powierzchniami walcowymi nabiegunników ruchomych (4). Przegroda (8) ma postac pierscienia o przekroju poprzecznym prostokatnym, który osadzony jest na wewnetrznej powierzchni walcowej magnesu trwalego (5) umieszczonego w obudowie (2) lub na zewnetrznej powierzchni walcowej magnesu trwalego (6) umocowanego na wale (1).The multi-stage magnetic liquid seal is characterized by the fact that the housing (2) of the seal has fixed pole pieces (3) in the form of stepped sleeves separated by permanent magnet (5), and the movable pole pieces (4) are also mounted on the shaft (1) graduated sleeves separated by permanent magnets (6), the sealing lips being made on internal cylindrical surfaces of fixed pole pieces (3) or on external cylindrical surfaces of moving pole pieces (4). The permanent magnets (5 and 6) placed in the housing (2) and on the shaft (1) are positioned relative to each other in such a way that the permanent magnet (5) is in the NS pole arrangement, and the magnet (6) is in the SN pole arrangement or vice versa. The magnetic fluid (7) is placed in the ring gaps formed between the sealing protrusions of the movable pole pieces (4) and the smooth cylindrical surfaces of the fixed pole pieces (3) or in the gaps between the sealing protrusions of fixed pole pieces (3) and the smooth cylindrical surfaces of the moving pole pieces (4) . The baffle (8) has the form of a rectangular cross-section ring which is mounted on the inner cylindrical surface of the permanent magnet (5) located in the housing (2) or on the outer cylindrical surface of the permanent magnet (6) mounted on the shaft (1).

PL397294A 2011-12-08 2011-12-08 Multistage sealing using a magnetic fluid PL221563B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL397294A PL221563B1 (en) 2011-12-08 2011-12-08 Multistage sealing using a magnetic fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL397294A PL221563B1 (en) 2011-12-08 2011-12-08 Multistage sealing using a magnetic fluid

Publications (2)

Publication Number Publication Date
PL397294A1 true PL397294A1 (en) 2013-06-10
PL221563B1 PL221563B1 (en) 2016-04-29

Family

ID=48539598

Family Applications (1)

Application Number Title Priority Date Filing Date
PL397294A PL221563B1 (en) 2011-12-08 2011-12-08 Multistage sealing using a magnetic fluid

Country Status (1)

Country Link
PL (1) PL221563B1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9512698B2 (en) 2013-12-30 2016-12-06 Halliburton Energy Services, Inc. Ferrofluid tool for providing modifiable structures in boreholes
US9797222B2 (en) 2013-12-30 2017-10-24 Halliburton Energy Services, Inc. Ferrofluid tool for enhancing magnetic fields in a wellbore
US9850733B2 (en) 2013-12-19 2017-12-26 Halliburton Energy Services, Inc. Self-assembling packer
US9896910B2 (en) 2013-12-30 2018-02-20 Halliburton Energy Services, Inc. Ferrofluid tool for isolation of objects in a wellbore
CN107725785A (en) * 2017-10-30 2018-02-23 广西科技大学 A kind of new staged device for sealing magnetic fluid
US9982508B2 (en) 2013-12-19 2018-05-29 Halliburton Energy Services, Inc. Intervention tool for delivering self-assembling repair fluid
US10047590B2 (en) 2013-12-30 2018-08-14 Halliburton Energy Services, Inc. Ferrofluid tool for influencing electrically conductive paths in a wellbore
US10876378B2 (en) 2015-06-30 2020-12-29 Halliburton Energy Services, Inc. Outflow control device for creating a packer

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105570465B (en) * 2016-03-02 2018-11-27 广西科技大学 A kind of labyrinth type magnetic fluid seal device
CN106015586B (en) * 2016-07-29 2017-09-29 广西科技大学 A kind of stepped end-surface type magnetic fluid seal device
CN106151527B (en) * 2016-08-15 2018-04-10 广西科技大学 A kind of magnetic source tandem type staged device for sealing magnetic fluid
PL236728B1 (en) * 2017-10-10 2021-02-08 Akademia Gorniczo Hutnicza Im Stanislawa Staszica W Krakowie Multi-stage sealing with ferromagnetic fluid
CN107956880B (en) * 2017-12-13 2019-08-09 广西科技大学 A kind of magnetic fluid sealing structure
PL233831B1 (en) * 2018-01-22 2019-11-29 Akademia Gorniczo Hutnicza Im Stanislawa Staszica W Krakowie Rotary centrifugal sealing with magnetic fluid
CN108266534A (en) * 2018-02-11 2018-07-10 广西科技大学 A kind of list magnetic source magnetic fluid sealing structure
CN108468811A (en) * 2018-02-11 2018-08-31 广西科技大学 A kind of magnetic fluid sealing structure
CN108799507B (en) * 2018-09-13 2020-12-18 广西科技大学 Multi-magnetic-source sleeve type magnetic fluid sealing device
CN109210205B (en) * 2018-10-24 2020-07-21 广西科技大学 Magnetic conductive ring sleeve type magnetic fluid sealing device
CN109185464B (en) * 2018-10-24 2020-07-17 广西科技大学 Magnetic conduction cylinder stepped magnetic fluid sealing device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9850733B2 (en) 2013-12-19 2017-12-26 Halliburton Energy Services, Inc. Self-assembling packer
US9982508B2 (en) 2013-12-19 2018-05-29 Halliburton Energy Services, Inc. Intervention tool for delivering self-assembling repair fluid
US9512698B2 (en) 2013-12-30 2016-12-06 Halliburton Energy Services, Inc. Ferrofluid tool for providing modifiable structures in boreholes
US9797222B2 (en) 2013-12-30 2017-10-24 Halliburton Energy Services, Inc. Ferrofluid tool for enhancing magnetic fields in a wellbore
US9896910B2 (en) 2013-12-30 2018-02-20 Halliburton Energy Services, Inc. Ferrofluid tool for isolation of objects in a wellbore
US10047590B2 (en) 2013-12-30 2018-08-14 Halliburton Energy Services, Inc. Ferrofluid tool for influencing electrically conductive paths in a wellbore
US10876378B2 (en) 2015-06-30 2020-12-29 Halliburton Energy Services, Inc. Outflow control device for creating a packer
CN107725785A (en) * 2017-10-30 2018-02-23 广西科技大学 A kind of new staged device for sealing magnetic fluid
CN107725785B (en) * 2017-10-30 2020-07-10 广西科技大学 Novel stepped magnetic fluid sealing device

Also Published As

Publication number Publication date
PL221563B1 (en) 2016-04-29

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