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CN1010796B - Sealing structure for propeller shaft in ship - Google Patents

Sealing structure for propeller shaft in ship

Info

Publication number
CN1010796B
CN1010796B CN87107868A CN88109214A CN1010796B CN 1010796 B CN1010796 B CN 1010796B CN 87107868 A CN87107868 A CN 87107868A CN 88109214 A CN88109214 A CN 88109214A CN 1010796 B CN1010796 B CN 1010796B
Authority
CN
China
Prior art keywords
pressure
doughnut
discharge tube
sealing configuration
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.)
Expired
Application number
CN87107868A
Other languages
Chinese (zh)
Other versions
CN1035876A (en
Inventor
冈特·皮什
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
At Fuchs Holding Co
Blohm and Voss GmbH
Original Assignee
Blohm and Voss GmbH
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 Blohm and Voss GmbH filed Critical Blohm and Voss GmbH
Publication of CN1035876A publication Critical patent/CN1035876A/en
Publication of CN1010796B publication Critical patent/CN1010796B/en
Expired legal-status Critical Current

Links

Images

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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/002—Means for preventing rotation of screw-threaded elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/321—Bearings or seals specially adapted for propeller shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F01C1/103—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C20/00—Control of, monitoring of, or safety arrangements for, machines or engines
    • F01C20/24—Control of, monitoring of, or safety arrangements for, machines or engines characterised by using valves for controlling pressure or flow rate, e.g. discharge valves
    • F01C20/26—Control of, monitoring of, or safety arrangements for, machines or engines characterised by using valves for controlling pressure or flow rate, e.g. discharge valves using bypass channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • F16B43/001—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts for sealing or insulation
    • 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
    • F16J15/002—Sealings comprising at least two sealings in succession
    • F16J15/004—Sealings comprising at least two sealings in succession forming of recuperation chamber for the leaking fluid
    • 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
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/321—Bearings or seals specially adapted for propeller shafts
    • B63H2023/327—Sealings specially adapted for propeller shafts or stern tubes
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/955—Locked bolthead or nut
    • Y10S411/974—Side lock
    • Y10S411/984—Longitudinal
    • Y10S411/99—Washer tongue-held

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Computer Hardware Design (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Sealing Devices (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Sealing Of Bearings (AREA)

Abstract

An arrangement for the sealing of a propeller shaft of a ship against the seawater and against a lubricant chamber comprises a multiple seal with a ring chamber being carved out in each case between two adjacent sealing rings, with the ring chamber being pressurized via a feed line with a pressurized gas e.g. air, is characterized in that a discharge line opens into the pressurized ring chamber; in that a scraper is arranged in the ring chamber and is rigidly connected therewith, with the scraper being so designed that it scrapes lubricant adhering to the shaft from the latter and directs it into the lower part of the ring chamber.

Description

Sealing structure for propeller shaft in ship
The present invention relates to a kind of sealing configuration of screw shaft of ship, the sealing structure is used to seal seawater and oiling agent, form by multiple-sealed, in seawater one side a seal ring outwardly is housed at least, in oiling agent one side a seal ring inwardly is housed at least, simultaneously, between two adjacent seal rings, always reserves a doughnut, this doughnut feeds a kind of pressurized gas through a supplying tube, particularly feeds pressurized air.
The pressure of (DE-OS2212165) pressurized gas is selected a little more than the pressure of the medium that will seal in such sealing configuration, so just takes place to leak a small amount of gas in adjacent space by doughnut.Thus, though avoided oiling agent to escape in the seawater, can not avoid gas to escape in the oiling agent, and this will cause the emulsification gradually of oiling agent, naturally its lubricity has reduced.In addition, in this known seal, in sealing area, can not make gas pressure constantly adapt to the change of external sea water pressure, like this, for example when ship loaded, outside hydraulic pressure improved, and seawater just can enter doughnut, and enter into oiling agent therefrom, thereby its greasy property is further reduced.
For eliminating this defective, advise that (DE-OS3502395) so regulates the indoor gas pressure of annular, promptly this gas pressure less than the pressure of the oiling agent in lubricant chamber, is enough but press to a trap from the leakage of doughnut by discharge tube for handle always.
Do not stipulate that in this seal arrangement compressed-air actuated pressure is always less than the external sea water pressure, so just may occur when seawater pressure reduces, for example ought unload ship time, produce a pressure gradient between doughnut and the outside seawater, because this pressure gradient flows in the seawater leakage fluid from doughnut, thereby befouling environment.
Disadvantageous in known structure also have, because discharge tube and supplying tube are not designed to the pipe-line system of sealing, moreover, the compressed-air actuated continuous loss that takes place by trap, this just requires source of compressed air that a sizable conveying capacity is arranged, and can not avoid bigger pressure surge in addition.
In addition, disclose a kind of sealing system (DE-OS3122407), here, between seal ring, disposed one and do not had the leakage-chamber of pressing, and the emptying by the conduit in the importing ship of the leakage fluid of seepage.
Do not make that the load of seal ring is quite high owing to there is the leakage-chamber of pressure, like this, because very big wearing and tearing are just appearring in bad the lubricating after the relatively shorter time of seal ring on the seal ring and on axle sleeve/axle.Because will appearring in the inefficacy of seal ring, serious environmental pollutes.
Such system also only is put into the product of protecting environment conditionally, in the seawater around some is taken out of from running shaft and is drawn into because of the oiling agent that is penetrated into leakage-chamber here.
The present invention is based on such task, promptly overcome this unreliable and shortcoming of described device, and a kind of sealing configuration proposed thus, in the sealing structure, not only further avoided degenerating of the oiling agent that causes owing to the seawater that is penetrated into lubricant chamber, and avoided discharging oiling agent to around seawater in the environmental pollution that causes, and life-span of in the sealing structure, having improved seal ring.
Uniting of the following measure of this task of the present invention solves:
A) when the external sea water pressure fluctuates up or down, the pressure of pressurized gas always remains on and equates or a little less than seawater pressure and lubricant chamber's pressure on every side, like this by pumping action or similar method, oiling agent or seawater just may be penetrated in the doughnut, and short term stored there, and can not be discharged in outside seawater and the lubricant chamber, and pass through then
B) in the doughnut of air inlet, connect a discharge tube, this discharge tube and affiliated supplying tube constitute the pipe-line system of a sealing, here, pressure in pipe-line system is to keep by a pressure regulator that is installed in the supplying tube, and on discharge tube, connect discharge tube simultaneously through a controllable shutoff device, this exhaust manifold flows to the inside (bottom cabin) of ship, and is used for the leakage fluid that is penetrated into doughnut is transferred out, and
C) oil wiper rigidly connected of configuration in doughnut with it, this oil wiper so designs, and promptly it can scrape off the bottom that sticks to the oiling agent on the axle and import to doughnut.
In this system, can abandon the pressure of leakage-chamber and can regulate oiling agent, the pressure of oiling agent and seawater pressure are equated.Gas pressure in the doughnut suitably is adjusted to low about 0.1-0.4 crust, and the pressure of sealing ring is just very little like this.
In a preferred embodiment, shutoff device is designed to solenoid valve.Make remote control become possibility in simple mode thus.Additional embodiments is characterized in that, realizes that by a prober or a float in the configuration of doughnut bottom the control of shutoff device or this control realize by the time relay of periodically effect.
First embodiment attempts the emptying doughnut, and this emptying is relevant with the degree that leakage fluid is full of doughnut, and is particularly suitable for the running state of surging, and then an embodiment impels a kind of periodic emptying, can be used for comparatively stable status.
Advise that at last compressed-air actuated force value remains below force value 0.1～0.4 crust of the medium that will seal, this pressure range is proved to be particularly advantageous.
Other details describes by accompanying drawing, and this accompanying drawing has only been represented the sealing configuration of summary and the pipeline that is connected with the sealing structure.
Accompanying drawing has represented to have the section of the seal arrangement of three seal rings 2, and these seal rings constitute two doughnuts 3, doughnut one side sealing seawater W, and the agent of opposite side seal lubrication is lubricant oil S in this embodiment.One of doughnut disposes supplying tube 4 and discharge tube 5, and supplying tube and discharge tube are (pipeline are represented with dot and dash line) connected to one another, has so just constituted the closed pipe system of a pressurized air effect.
Discharge tube 5 have the exhaust outlet 5 of an inflow ship inside (bottom cabin) ', this arm is in the three-way valve control of point of branching by a charged magnet valve 6, this valve is so controlled by a time relay, be that discharge tube is periodically opened at interval with preset time, thereby leakage fluid is discharged in doughnut.
The discharge of this leakage fluid can also be carried out by float or prober.This output tube 4 comprises a simple regulator 8, this regulator such was the case with indoor pressure of ground control annular, and promptly the compressed-air actuated pressure in the pipe-line system is lower than pressure 0.1～0.4 crust of the two media that will seal all the time.
An oil wiper 7 is installed among one in doughnut 3, although this oil wiper having adopted above-mentioned measure since the pumping action of axle sleeve B be penetrated into doughnut interior stick to the bottom that lubricant oil on the axle sleeve B scrapes doughnut.

Claims (5)

1, the sealing configuration of marine propeller, form by multiple-sealed, seawater one side is equipped with a seal ring outwardly at least, and a seal ring inwardly is housed at least in oiling agent one side, simultaneously, between two adjacent seal rings, always reserve a doughnut, this doughnut feeds a kind of pressurized gas by a supplying tube, particularly feed pressurized air, in the doughnut of air inlet, connect a discharge tube, this discharge tube and affiliated supplying tube constitute the pipe-line system of a sealing, and simultaneously, the pressure in this pipe-line system is to realize by means of a pressure regulator that is connected in the supplying tube, and on discharge tube, close discharge tube simultaneously through a controllable shutoff device, this exhaust manifold flows to the inside (bottom cabin) of ship and is used to discharge the leakage fluid that is penetrated in the doughnut, it is characterized in that
A) pressure of pressurized gas always remains on a little less than each external sea water pressure and lubricant pressure or with each external sea water pressure and lubricant pressure and equates; And
B) one of configuration is rigidly connected with it in doughnut scrapes off the oiling agent that sticks on the axle and the bottom oil wiper of its importing doughnut.
According to the sealing configuration of claim 1, it is characterized in that 2, this shutoff device is designed to have the three-way valve of solenoid valve.
According to the sealing configuration of claim 1 or 2, it is characterized in that 3, the control of shutoff device is to be placed in the prober of doughnut bottom or to pass through a float realization by one.
According to the sealing configuration of claim 1 or 2, it is characterized in that 4, the control of shutoff device is to realize by the time relay of one-period effect.
According to the sealing configuration of arbitrary claim in the claim 1 to 2, it is characterized in that 5, the pressure of pressurized gas remains below pressure 0.1～0.4 crust of the medium that will seal.
CN87107868A 1987-12-11 1988-12-10 Sealing structure for propeller shaft in ship Expired CN1010796B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3742079.8 1987-12-11
DE3742079A DE3742079C2 (en) 1987-12-11 1987-12-11 Arrangement for sealing a propeller shaft of a ship

Publications (2)

Publication Number Publication Date
CN1035876A CN1035876A (en) 1989-09-27
CN1010796B true CN1010796B (en) 1990-12-12

Family

ID=6342409

Family Applications (1)

Application Number Title Priority Date Filing Date
CN87107868A Expired CN1010796B (en) 1987-12-11 1988-12-10 Sealing structure for propeller shaft in ship

Country Status (8)

Country Link
JP (1) JP2599983B2 (en)
KR (1) KR0142103B1 (en)
CN (1) CN1010796B (en)
AU (1) AU608393B2 (en)
DE (1) DE3742079C2 (en)
GB (1) GB2213539B (en)
NL (1) NL192828C (en)
SE (1) SE501926C2 (en)

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DE102012009478B4 (en) * 2012-05-12 2017-07-20 Skf Blohm + Voss Industries Gmbh Sealing for rotating shafts of ship propellers
DE102012016447B4 (en) 2012-08-18 2022-12-01 Skf Marine Gmbh Sealing for rotating shafts of ship propeller shafts
DE102013008967B4 (en) 2013-05-22 2017-01-26 Skf Blohm + Voss Industries Gmbh Device for sealing a propeller shaft and method for producing such a device
CN103411122B (en) * 2013-07-30 2015-12-23 苏州豪建纺织有限公司 A kind of loom roll shaft oil-impermeable device
DE102014217223B4 (en) * 2014-08-28 2016-09-15 Skf Blohm + Voss Industries Gmbh Sealing system, procedure and watercraft
EP3015358B1 (en) * 2014-11-03 2019-01-02 ABB Oy Seal arrangement for a propeller shaft
CN105952620A (en) * 2016-05-13 2016-09-21 蚌埠市金鹏燃气设备制造有限公司 Oil scraping device for piston type compressor
DE102017213830A1 (en) * 2017-08-08 2019-02-14 Skf Marine Gmbh Sealing arrangement with connecting channel
CN108953118A (en) * 2018-07-13 2018-12-07 成都添益天然气压缩机制造有限公司 Body in natural gas compressor Multicarity
CN109469734A (en) * 2018-12-06 2019-03-15 中信重工机械股份有限公司 An underwater rotary seal matched with a submerged shaft boring machine
CN110906003A (en) * 2019-12-11 2020-03-24 天津长瑞大通流体控制系统有限公司 Leak-free detection system and method for a sealing device with a collecting device
CN110894910A (en) * 2019-12-11 2020-03-20 天津长瑞大通流体控制系统有限公司 Leakage-free detection system and method for sealing device with alarm
CN111306395B (en) * 2020-03-31 2024-10-25 天津长瑞大通流体控制系统有限公司 Online repairing system and repairing method for pipeline assembly after sealing failure
CN111981003A (en) * 2020-08-19 2020-11-24 徐燕 Novel anti-drop threaded connection rod
DE102022214026A1 (en) * 2022-12-20 2024-06-20 Aktiebolaget Skf Rolling bearings with seals and flushing channel
DE102022214027A1 (en) 2022-12-20 2024-06-20 Aktiebolaget Skf Rolling bearings with seals and leakage channel
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Also Published As

Publication number Publication date
JP2599983B2 (en) 1997-04-16
KR890009722A (en) 1989-08-03
KR0142103B1 (en) 1998-07-15
NL8803033A (en) 1989-07-03
NL192828B (en) 1997-11-03
SE501926C2 (en) 1995-06-19
AU608393B2 (en) 1991-03-28
GB8828437D0 (en) 1989-01-05
JPH01195199A (en) 1989-08-07
AU2664588A (en) 1989-06-15
GB2213539A (en) 1989-08-16
GB2213539B (en) 1991-12-11
DE3742079C2 (en) 1994-05-11
SE8804471L (en) 1989-06-12
NL192828C (en) 1998-03-04
DE3742079A1 (en) 1989-06-22
CN1035876A (en) 1989-09-27
SE8804471D0 (en) 1988-12-09

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