PL439291A1 - Multi-stage gland seal with magnetic liquid for high-speed shaft - Google Patents

Multi-stage gland seal with magnetic liquid for high-speed shaft

Info

Publication number
PL439291A1
PL439291A1 PL439291A PL43929121A PL439291A1 PL 439291 A1 PL439291 A1 PL 439291A1 PL 439291 A PL439291 A PL 439291A PL 43929121 A PL43929121 A PL 43929121A PL 439291 A1 PL439291 A1 PL 439291A1
Authority
PL
Poland
Prior art keywords
sub
flange
pole pieces
edge pole
magnetic liquid
Prior art date
Application number
PL439291A
Other languages
Polish (pl)
Inventor
Leszek Matuszewski
Original Assignee
Politechnika Gdańska
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 Politechnika Gdańska filed Critical Politechnika Gdańska
Priority to PL439291A priority Critical patent/PL439291A1/en
Publication of PL439291A1 publication Critical patent/PL439291A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/26—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
    • F16J15/28—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings with sealing rings made of metal
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings
    • F16J15/3272—Mounting of sealing rings the rings having a break or opening, e.g. to enable mounting on a shaft otherwise than from a shaft end

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

Przedmiotem zgłoszenia jest wielostopniowe uszczelnienie dławnicowe z cieczą magnetyczną dla walu szybkoobrotowego, charakteryzujące się tym, że w pojedynczym podzespole wielokrawędziowe nabiegunniki (4) przedzielone pierścieniowym magnesem trwałym (3) spolaryzowanym osiowo, umocowane są w obudowie (2). Tulejka kołnierzowa (5) z kołnierzem (5a) skierowanym w stronę obudowy (2), umieszczonym z luzem pomiędzy wielokrawędziowymi nabiegunnikami (4) i pierścieniowym magnesem trwałym (3) osadzona jest na wale (1). Na bocznych powierzchniach kołnierza (5a), tulejki kołnierzowej (5) oraz na wewnętrznych cylindrycznych powierzchniach wielokrawędziowych nabiegunników (4) wykonane są występy uszczelniające. Ciecz magnetyczna (6) znajduje się w szczelinach promieniowych (δ<sub>r</sub>) pomiędzy występami uszczelniającymi wielokrawędziowych nabiegunników (4), a odpowiednimi powierzchniami walcowymi tulejki kołnierzowej (5) oraz w szczelinach osiowych (δ<sub>r</sub>) pomiędzy występami uszczelniającymi usytuowanymi na bocznych powierzchniach kołnierza (5a) tulejki kołnierzowej (5), a bocznymi powierzchniami wielokrawędziowych nabiegunników (4) lub w szczelinach promieniowych (δ<sub>r</sub>) pomiędzy występami uszczelniającymi wielokrawędziowych nabiegunników (4), a odpowiednimi powierzchniami walcowymi tulejki kołnierzowej (5) oraz w szczelinie obwodowej (δ<sub>o</sub>) pomiędzy powierzchnią walcową kołnierza (5a) tulejki kołnierzowej (5), a wewnętrzną cylindryczną powierzchnią pierścieniowego magnesu trwałego (3).The subject of the application is a multi-stage gland packing with a magnetic liquid for a high-speed shaft, characterized in that in a single sub-assembly, multi-edge pole pieces (4) separated by an annular permanent magnet (3) axially polarized are fixed in the housing (2). The flange sleeve (5) with the flange (5a) directed towards the housing (2), placed with play between the multi-edge pole pieces (4) and the annular permanent magnet (3), is mounted on the shaft (1). Sealing protrusions are made on the side surfaces of the flange (5a), the flange sleeve (5) and on the inner cylindrical surfaces of the multi-edge pole pieces (4). The magnetic liquid (6) is located in the radial gaps (δ<sub>r</sub>) between the sealing protrusions of the multi-edge pole pieces (4) and the corresponding cylindrical surfaces of the flange sleeve (5) and in the axial gaps (δ<sub>r< /sub>) between the sealing protrusions located on the side surfaces of the flange (5a) of the flange sleeve (5) and the side surfaces of the multi-edge pole pieces (4) or in the radial gaps (δ<sub>r</sub>) between the sealing protrusions of the multi-edge pole pieces ( 4) and the corresponding cylindrical surfaces of the flange sleeve (5) and in the circumferential gap (δ<sub>o</sub>) between the cylindrical surface of the flange (5a) of the flange sleeve (5) and the inner cylindrical surface of the annular permanent magnet (3) .

PL439291A 2021-10-25 2021-10-25 Multi-stage gland seal with magnetic liquid for high-speed shaft PL439291A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL439291A PL439291A1 (en) 2021-10-25 2021-10-25 Multi-stage gland seal with magnetic liquid for high-speed shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL439291A PL439291A1 (en) 2021-10-25 2021-10-25 Multi-stage gland seal with magnetic liquid for high-speed shaft

Publications (1)

Publication Number Publication Date
PL439291A1 true PL439291A1 (en) 2023-05-02

Family

ID=86184122

Family Applications (1)

Application Number Title Priority Date Filing Date
PL439291A PL439291A1 (en) 2021-10-25 2021-10-25 Multi-stage gland seal with magnetic liquid for high-speed shaft

Country Status (1)

Country Link
PL (1) PL439291A1 (en)

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