CN201827374U - Magnetic fluid sealing structure for end face of tubular turbine - Google Patents

Magnetic fluid sealing structure for end face of tubular turbine Download PDF

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Publication number
CN201827374U
CN201827374U CN2010202776160U CN201020277616U CN201827374U CN 201827374 U CN201827374 U CN 201827374U CN 2010202776160 U CN2010202776160 U CN 2010202776160U CN 201020277616 U CN201020277616 U CN 201020277616U CN 201827374 U CN201827374 U CN 201827374U
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CN
China
Prior art keywords
magnet
magnetic fluid
fluid sealing
fixed
sealing mechanism
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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.)
Expired - Fee Related
Application number
CN2010202776160U
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Chinese (zh)
Inventor
纪平
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Gansu Radio & Tv University
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Gansu Radio & Tv University
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Application filed by Gansu Radio & Tv University filed Critical Gansu Radio & Tv University
Priority to CN2010202776160U priority Critical patent/CN201827374U/en
Application granted granted Critical
Publication of CN201827374U publication Critical patent/CN201827374U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

Abstract

The utility model relates to a magnetic fluid sealing structure for an end face of a tubular turbine, which aims to improve the sealing performance if a rotating shaft of a tubular turbine. A rotating wheel (5) is arranged at the end of a rotating shaft (9) of a tubular turbine, a magnetic fluid sealing mechanism (6) is arranged between a guide bearing (4) and the rotating wheel (5) and comprises magnetic fluid (8), a magnet (13), a magnet (11), a magnet (10) and a permanent magnet (12), a fixing structure (15) is arranged in a tubular shell of the magnetic fluid sealing mechanism (6), the magnet (13) is fixed on the fixing structure (15), one end of the permanent magnet (12) is fixed on the magnet (13), the other end of the permanent magnet (12) is fixed on the magnet (11), and the magnet (10) is fixed on the rotating wheel (5) and can rotate along with the rotating wheel (5); a clearance is formed respectively between the magnet (13) and the magnet (10) and between the magnet (11) and the magnet (10) for relative rotation, the clearances are filled with the magnetic fluid (8), and the magnetic fluid (8) can be constrained in the clearance under effect of magnetic lines of force (14) so as to separate space between the magnet (13) and the magnet (10) from space between the magnet (11) and the magnet (10) and to form a sealing structure; and a magnetic fluid sealing mechanism with the same structure as the magnetic fluid sealing mechanism (6) is also arranged between an oil receiver (1) and the guide bearing (2).

Description

A kind of tubular turbine end face magnetic fluid sealing structure
Technical field
The utility model relates to the magnetic fluid sealing structure of tubular turbine rotating shaft.
Background technique
The sand wear of tubular turbine is a kind of strong mode of failure, and it can make the flow passage components of tubular turbine be subjected in various degree destruction, serious wearing and tearing even the component of tubular turbine can't be repaired.Yet solve the problem of silt particle to bearing wear, main by selecting rational abrasive-resistant material.This method is the cost height not only, and anti-wear effect is not too remarkable.
Summary of the invention
The purpose of this utility model is to improve the sealability of tubular turbine rotating shaft.
The utility model is a kind of tubular turbine end face magnetic fluid sealing structure, runner 5 is installed in the end of water turbine rotating shaft 9, one magnet fluid sealing mechanism 6 is installed between second guide bearing 4 and runner 5, magnet fluid sealing mechanism 6 comprises magnetic fluid 8, first magnet case 13, second magnet case 11, the 3rd magnet case 10, permanent magnet 12, mount fixing structure 15, the first magnet cases 13 are fixed on the fixed structure 15 in the tubular shell of magnet fluid sealing mechanism 6, one end of permanent magnet 12 is fixed on first magnet case 13, the other end is fixed on second magnet case 11, and the 3rd magnet case 10 is fixed on the runner 5, and can rotate with runner 5; Between first magnet case 13 and the 3rd magnet case 10, all gapped between second magnet case 11 and the 3rd magnet case 10, can do relative rotation, between above-mentioned gap, be full of magnetic fluid 8, under the effect of the magnetic line of force 14, magnetic fluid 8 is bound in the above-mentioned gap, thereby the space is separated, and forms sealing configuration; Between lubricant receiver 1 and first guide bearing 2, a magnet fluid sealing mechanism identical with magnet fluid sealing mechanism 6 structures is installed also.
The utility model adopts the magnet fluid sealing bearing technology, utilize the magnetic liquid can be by the characteristic of magnetic control, utilize the annular permanent-magnet body to produce the Magnetic field distribution of a ring-type at the rotation axis seal parts, thereby magnetic liquid can be constrained among the magnetic field and form the "O of magnetic liquid, and wearing and tearing can not accomplished long-life dynamic seal (packing).After adopting this structure, the tubular turbine of being studied, obviously prolong working life, and solved always puzzlement tubular turbine for many years under water bearing advance husky problem.
Description of drawings
Fig. 1 is an integral installation structural drawing of the present utility model, and Fig. 2 is the structural drawing of magnet fluid sealing mechanism, and reference character and corresponding name are called: lubricant receiver 1, first guide bearing 2, thrust-bearing 3, the second guide bearings 4, runner 5, magnet fluid sealing mechanism 6, water distributor 7, magnetic fluid 8, water turbine rotating shaft 9, the three magnet cases 10, second magnet case 11, permanent magnet 12, the first magnet cases 13, the magnetic line of force 14, fixed structure 15.
Embodiment
As Fig. 1, shown in Figure 2, the utility model is a kind of tubular turbine end face magnetic fluid sealing structure, runner 5 is installed in the end of water turbine rotating shaft 9, one magnet fluid sealing mechanism 6 is installed between second guide bearing 4 and runner 5, magnet fluid sealing mechanism 6 comprises magnetic fluid 8, first magnet case 13, second magnet case, 11, the three magnet cases 10, permanent magnet 12, mount fixing structure 15 in the tubular shell of magnet fluid sealing mechanism 6, first magnet case 13 is fixed on the fixed structure 15, and an end of permanent magnet 12 is fixed on first magnet case 13, and the other end is fixed on second magnet case 11, the 3rd magnet case 10 is fixed on the runner 5, and can rotate with runner 5; Between first magnet case 13 and the 3rd magnet case 10, all gapped between second magnet case 11 and the 3rd magnet case 10, can do relative rotation, between above-mentioned gap, be full of magnetic fluid 8, under the effect of the magnetic line of force 14, magnetic fluid 8 is bound in the above-mentioned gap, thereby the space is separated, and forms sealing configuration; Between lubricant receiver 1 and first guide bearing 2, a magnet fluid sealing mechanism identical with magnet fluid sealing mechanism 6 structures is installed also.When runner 5 rotations, when driving water turbine rotating shaft 9 rotations, the 3rd magnet case 10 is with its rotation, first magnet case 13 and second magnet case 11 are then motionless, magnetic fluid 8 will be bound in first magnet case 13 and second top to magnet 11, thereby reach seal action under magnetic line of force effect.This method easily adopts the bigger structure of axial dimension.

Claims (1)

1. tubular turbine end face magnetic fluid sealing structure, runner (5) is installed in the end of water turbine rotating shaft (9), it is characterized in that between second guide bearing (4) and runner (5), installing a magnet fluid sealing mechanism (6), magnet fluid sealing mechanism (6) comprises magnetic fluid (8), first magnet case (13), second magnet case (11), the 3rd magnet case (10), permanent magnet (12), mount fixing structure in the tubular shell of magnet fluid sealing mechanism (6) (15), first magnet case (13) is fixed on the fixed structure (15), one end of permanent magnet (12) is fixed on first magnet case (13), the other end is fixed on second magnet case (11), and the 3rd magnet case (10) is fixed on the runner (5), and can rotate with runner (5); Between first magnet case (13) and the 3rd magnet case (10), all gapped between second magnet case (11) and the 3rd magnet case (10), can do relative rotation, between above-mentioned gap, be full of magnetic fluid (8), under the effect of the magnetic line of force (14), magnetic fluid (8) is bound in the above-mentioned gap, thereby the space is separated, and forms sealing configuration; Between lubricant receiver (1) and first guide bearing (2), also install one with the identical magnet fluid sealing mechanism of structure of magnet fluid sealing mechanism (6).
CN2010202776160U 2010-07-26 2010-07-26 Magnetic fluid sealing structure for end face of tubular turbine Expired - Fee Related CN201827374U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202776160U CN201827374U (en) 2010-07-26 2010-07-26 Magnetic fluid sealing structure for end face of tubular turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202776160U CN201827374U (en) 2010-07-26 2010-07-26 Magnetic fluid sealing structure for end face of tubular turbine

Publications (1)

Publication Number Publication Date
CN201827374U true CN201827374U (en) 2011-05-11

Family

ID=43965911

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202776160U Expired - Fee Related CN201827374U (en) 2010-07-26 2010-07-26 Magnetic fluid sealing structure for end face of tubular turbine

Country Status (1)

Country Link
CN (1) CN201827374U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110511

Termination date: 20130726